Completed 17
Co-authored-by: sigonasr2 <sigonasr2@gmail.com>
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archives/17/current
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168
archives/17/src/main.c
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168
archives/17/src/main.c
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#include <stdio.h>
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#include "utils.h"
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/*
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If the numbers 1 to 5 are written out in words: one, two, three, four, five, then there are 3 + 3 + 5 + 4 + 4 = 19 letters used in total.
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If all the numbers from 1 to 1000 (one thousand) inclusive were written out in words, how many letters would be used?
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NOTE: Do not count spaces or hyphens. For example, 342 (three hundred and forty-two) contains 23 letters and 115 (one hundred and fifteen) contains 20 letters. The use of "and" when writing out numbers is in compliance with British usage.
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https://projecteuler.net/problem=17
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*/
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int main(int argc,char**argv) {
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int totalCount=0;
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int counter=1;
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int i=1;
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int hundredsDigit=-1;
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int tensDigit=-1;
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while (i<=1000) {
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hundredsDigit=-1;
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tensDigit=-1;
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counter=i;
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int currentCount=totalCount;
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if (counter==1000) {
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//onethousand (11)
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totalCount+=11;
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counter-=1000;
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printf("onethousand");
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}
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if (counter>=100) {
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hundredsDigit=counter/100;
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switch (hundredsDigit) {
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case 1:
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case 2:
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case 6:{
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//onehundred (10)
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totalCount+=10;
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printf("%s",hundredsDigit==1?"one":hundredsDigit==2?"two":"six");
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}break;
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case 3:
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case 7:
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case 8:{
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//threehundred (12)
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totalCount+=12;
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printf("%s",hundredsDigit==3?"three":hundredsDigit==7?"seven":"eight");
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}break;
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case 4:
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case 5:
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case 9:{
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//fourhundred (11)
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totalCount+=11;
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printf("%s",hundredsDigit==4?"four":hundredsDigit==5?"five":"nine");
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}break;
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}
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printf("hundred");
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counter-=hundredsDigit*100;
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}
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if (counter>=10) {
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tensDigit=counter/10;
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if (tensDigit!=0) {
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if (hundredsDigit!=-1) {
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//and (3)
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totalCount+=3;
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printf("and");
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}
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if (counter<20) {
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switch (counter) {
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case 10:{
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//ten (3)
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totalCount+=3;
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printf("ten");
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}break;
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case 11:{
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//eleven (6)
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totalCount+=6;
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printf("eleven");
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}break;
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case 12:{
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//twelve (5)
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totalCount+=5;
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printf("twelve");
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}break;
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case 13:
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case 14:
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case 19:{
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//thirteen (8)
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totalCount+=8;
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printf("%s",counter==13?"thirteen":counter==14?"fourteen":"nineteen");
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}break;
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case 15:
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case 16:{
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//fifteen (7)
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totalCount+=7;
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printf("%s",counter==15?"fifteen":"sixteen");
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}break;
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case 17:
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case 18:{
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//seventeen (9)
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totalCount+=9;
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printf("%s",counter==17?"seventeen":"eighteen");
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}break;
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}
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counter=0;
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} else {
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switch (tensDigit) {
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case 2:
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case 3:
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case 8:
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case 9:{
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//twenty (6)
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totalCount+=6;
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printf("%s",tensDigit==2?"twenty":tensDigit==3?"thirty":tensDigit==8?"eighty":"ninety");
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}break;
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case 4:
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case 5:
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case 6:{
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//forty (5)
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totalCount+=5;
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printf("%s",tensDigit==4?"forty":tensDigit==5?"fifty":"sixty");
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}break;
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case 7:{
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//seventy (7)
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totalCount+=7;
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printf("seventy");
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}break;
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}
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counter-=tensDigit*10;
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}
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}
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}
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if (counter>0) {
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if (tensDigit==-1&&hundredsDigit!=-1) {
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//and (3)
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totalCount+=3;
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printf("and");
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}
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switch (counter) {
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case 1:
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case 2:
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case 6:{
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//one (3)
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totalCount+=3;
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printf("%s",counter==1?"one":counter==2?"two":"six");
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}break;
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case 3:
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case 7:
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case 8:{
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//three (5)
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totalCount+=5;
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printf("%s",counter==3?"three":counter==7?"seven":"eight");
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}break;
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case 4:
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case 5:
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case 9:{
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//four (4)
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totalCount+=4;
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printf("%s",counter==4?"four":counter==5?"five":"nine");
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}break;
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}
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}
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printf(" %d:%d\n",i,totalCount-currentCount);
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i++;
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}
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printf("%d",totalCount);
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return 0;
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}
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54
archives/17/src/utils.c
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54
archives/17/src/utils.c
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#include "utils.h"
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#include <stdio.h>
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#include <stdlib.h>
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struct String add(struct String numb1, struct String numb2){
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byte carryover=0;
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int digitCount=0;
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char*str = malloc(0);
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if (numb1.length>=numb2.length) {
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for (int offset=0;offset<numb1.length;offset++) {
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str = realloc(str,++digitCount);
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//printf("Digit count is now %d\n",digitCount);
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if (numb2.length>offset) {
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//printf("%c %c\n",numb1.str[numb1.length-offset-1],numb2.str[numb2.length-offset-1]);
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int sum=((numb1.str[numb1.length-offset-1]-'0')+(numb2.str[numb2.length-offset-1]-'0'))+((carryover>0)?carryover--:0);
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if (sum>=10) {
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carryover=1;
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sum-=10;
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}
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str[offset]=sum+'0';
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} else {
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str[offset]=numb1.str[numb1.length-offset-1];
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}
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}
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} else {
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for (int offset=0;offset<numb2.length;offset++) {
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str = realloc(str,++digitCount);
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//printf("Digit count is now %d\n",digitCount);
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if (numb1.length>offset) {
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//printf("%c %c\n",numb1.str[numb1.length-offset-1],numb2.str[numb2.length-offset-1]);
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int sum=((numb1.str[numb1.length-offset-1]-'0')+(numb2.str[numb2.length-offset-1]-'0'))+((carryover>0)?carryover--:0);
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if (sum>=10) {
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carryover=1;
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sum-=10;
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}
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str[offset]=sum+'0';
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} else {
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str[offset]=numb2.str[numb2.length-offset-1];
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}
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}
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}
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if (carryover>0) {
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str = realloc(str,++digitCount);
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str[digitCount-1]='1';
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}
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for (int i=0;i<digitCount/2;i++) {
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char c = str[i];
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char c2 = str[digitCount-i-1];
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str[digitCount-i-1]=c;
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str[i]=c2;
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}
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struct String newStr = {digitCount,str};
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return newStr;
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}
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9
archives/17/src/utils.h
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9
archives/17/src/utils.h
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#define true 1
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#define false 0
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#define boolean char
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#define byte char
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struct String{
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int length;
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char*str;
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};
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struct String add(struct String numb1, struct String numb2);
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159
src/main.c
159
src/main.c
@ -2,12 +2,167 @@
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#include "utils.h"
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/*
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If the numbers 1 to 5 are written out in words: one, two, three, four, five, then there are 3 + 3 + 5 + 4 + 4 = 19 letters used in total.
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If all the numbers from 1 to 1000 (one thousand) inclusive were written out in words, how many letters would be used?
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https://projecteuler.net/problem=
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NOTE: Do not count spaces or hyphens. For example, 342 (three hundred and forty-two) contains 23 letters and 115 (one hundred and fifteen) contains 20 letters. The use of "and" when writing out numbers is in compliance with British usage.
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https://projecteuler.net/problem=17
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*/
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int main(int argc,char**argv) {
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printf("%s",add((struct String){7,"1845920"},(struct String){4,"1829"}).str);
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int totalCount=0;
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int counter=1;
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int i=1;
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int hundredsDigit=-1;
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int tensDigit=-1;
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while (i<=1000) {
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hundredsDigit=-1;
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tensDigit=-1;
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counter=i;
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int currentCount=totalCount;
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if (counter==1000) {
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//onethousand (11)
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totalCount+=11;
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counter-=1000;
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printf("onethousand");
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}
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if (counter>=100) {
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hundredsDigit=counter/100;
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switch (hundredsDigit) {
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case 1:
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case 2:
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case 6:{
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//onehundred (10)
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totalCount+=10;
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printf("%s",hundredsDigit==1?"one":hundredsDigit==2?"two":"six");
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}break;
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case 3:
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case 7:
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case 8:{
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//threehundred (12)
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totalCount+=12;
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printf("%s",hundredsDigit==3?"three":hundredsDigit==7?"seven":"eight");
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}break;
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case 4:
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case 5:
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case 9:{
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//fourhundred (11)
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totalCount+=11;
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printf("%s",hundredsDigit==4?"four":hundredsDigit==5?"five":"nine");
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}break;
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}
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printf("hundred");
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counter-=hundredsDigit*100;
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}
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if (counter>=10) {
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tensDigit=counter/10;
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if (tensDigit!=0) {
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if (hundredsDigit!=-1) {
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//and (3)
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totalCount+=3;
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printf("and");
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}
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if (counter<20) {
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switch (counter) {
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case 10:{
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//ten (3)
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totalCount+=3;
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printf("ten");
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}break;
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case 11:{
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//eleven (6)
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totalCount+=6;
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printf("eleven");
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}break;
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case 12:{
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//twelve (5)
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totalCount+=5;
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printf("twelve");
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}break;
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case 13:
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case 14:
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case 19:{
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//thirteen (8)
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totalCount+=8;
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printf("%s",counter==13?"thirteen":counter==14?"fourteen":"nineteen");
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}break;
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case 15:
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case 16:{
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//fifteen (7)
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totalCount+=7;
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printf("%s",counter==15?"fifteen":"sixteen");
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}break;
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case 17:
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case 18:{
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//seventeen (9)
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totalCount+=9;
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printf("%s",counter==17?"seventeen":"eighteen");
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}break;
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}
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counter=0;
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} else {
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switch (tensDigit) {
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case 2:
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case 3:
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case 8:
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case 9:{
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//twenty (6)
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totalCount+=6;
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printf("%s",tensDigit==2?"twenty":tensDigit==3?"thirty":tensDigit==8?"eighty":"ninety");
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}break;
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case 4:
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case 5:
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case 6:{
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//forty (5)
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totalCount+=5;
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printf("%s",tensDigit==4?"forty":tensDigit==5?"fifty":"sixty");
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}break;
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case 7:{
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//seventy (7)
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totalCount+=7;
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printf("seventy");
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}break;
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}
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counter-=tensDigit*10;
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}
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}
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}
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if (counter>0) {
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if (tensDigit==-1&&hundredsDigit!=-1) {
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//and (3)
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totalCount+=3;
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printf("and");
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}
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switch (counter) {
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case 1:
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case 2:
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case 6:{
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//one (3)
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totalCount+=3;
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printf("%s",counter==1?"one":counter==2?"two":"six");
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}break;
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case 3:
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case 7:
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case 8:{
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//three (5)
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totalCount+=5;
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printf("%s",counter==3?"three":counter==7?"seven":"eight");
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}break;
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case 4:
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case 5:
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case 9:{
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//four (4)
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totalCount+=4;
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printf("%s",counter==4?"four":counter==5?"five":"nine");
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}break;
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}
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}
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printf(" %d:%d\n",i,totalCount-currentCount);
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i++;
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}
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printf("%d",totalCount);
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return 0;
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}
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