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Co-authored-by: sigonasr2 <sigonasr2@gmail.com>
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sigonasr2, Sig, Sigo 3 years ago committed by GitHub
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  1. BIN
      archives/17/current
  2. 168
      archives/17/src/main.c
  3. 54
      archives/17/src/utils.c
  4. 9
      archives/17/src/utils.h
  5. BIN
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  6. 159
      src/main.c

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#include <stdio.h>
#include "utils.h"
/*
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.
If all the numbers from 1 to 1000 (one thousand) inclusive were written out in words, how many letters would be used?
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.
https://projecteuler.net/problem=17
*/
int main(int argc,char**argv) {
int totalCount=0;
int counter=1;
int i=1;
int hundredsDigit=-1;
int tensDigit=-1;
while (i<=1000) {
hundredsDigit=-1;
tensDigit=-1;
counter=i;
int currentCount=totalCount;
if (counter==1000) {
//onethousand (11)
totalCount+=11;
counter-=1000;
printf("onethousand");
}
if (counter>=100) {
hundredsDigit=counter/100;
switch (hundredsDigit) {
case 1:
case 2:
case 6:{
//onehundred (10)
totalCount+=10;
printf("%s",hundredsDigit==1?"one":hundredsDigit==2?"two":"six");
}break;
case 3:
case 7:
case 8:{
//threehundred (12)
totalCount+=12;
printf("%s",hundredsDigit==3?"three":hundredsDigit==7?"seven":"eight");
}break;
case 4:
case 5:
case 9:{
//fourhundred (11)
totalCount+=11;
printf("%s",hundredsDigit==4?"four":hundredsDigit==5?"five":"nine");
}break;
}
printf("hundred");
counter-=hundredsDigit*100;
}
if (counter>=10) {
tensDigit=counter/10;
if (tensDigit!=0) {
if (hundredsDigit!=-1) {
//and (3)
totalCount+=3;
printf("and");
}
if (counter<20) {
switch (counter) {
case 10:{
//ten (3)
totalCount+=3;
printf("ten");
}break;
case 11:{
//eleven (6)
totalCount+=6;
printf("eleven");
}break;
case 12:{
//twelve (5)
totalCount+=5;
printf("twelve");
}break;
case 13:
case 14:
case 19:{
//thirteen (8)
totalCount+=8;
printf("%s",counter==13?"thirteen":counter==14?"fourteen":"nineteen");
}break;
case 15:
case 16:{
//fifteen (7)
totalCount+=7;
printf("%s",counter==15?"fifteen":"sixteen");
}break;
case 17:
case 18:{
//seventeen (9)
totalCount+=9;
printf("%s",counter==17?"seventeen":"eighteen");
}break;
}
counter=0;
} else {
switch (tensDigit) {
case 2:
case 3:
case 8:
case 9:{
//twenty (6)
totalCount+=6;
printf("%s",tensDigit==2?"twenty":tensDigit==3?"thirty":tensDigit==8?"eighty":"ninety");
}break;
case 4:
case 5:
case 6:{
//forty (5)
totalCount+=5;
printf("%s",tensDigit==4?"forty":tensDigit==5?"fifty":"sixty");
}break;
case 7:{
//seventy (7)
totalCount+=7;
printf("seventy");
}break;
}
counter-=tensDigit*10;
}
}
}
if (counter>0) {
if (tensDigit==-1&&hundredsDigit!=-1) {
//and (3)
totalCount+=3;
printf("and");
}
switch (counter) {
case 1:
case 2:
case 6:{
//one (3)
totalCount+=3;
printf("%s",counter==1?"one":counter==2?"two":"six");
}break;
case 3:
case 7:
case 8:{
//three (5)
totalCount+=5;
printf("%s",counter==3?"three":counter==7?"seven":"eight");
}break;
case 4:
case 5:
case 9:{
//four (4)
totalCount+=4;
printf("%s",counter==4?"four":counter==5?"five":"nine");
}break;
}
}
printf(" %d:%d\n",i,totalCount-currentCount);
i++;
}
printf("%d",totalCount);
return 0;
}

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#include "utils.h"
#include <stdio.h>
#include <stdlib.h>
struct String add(struct String numb1, struct String numb2){
byte carryover=0;
int digitCount=0;
char*str = malloc(0);
if (numb1.length>=numb2.length) {
for (int offset=0;offset<numb1.length;offset++) {
str = realloc(str,++digitCount);
//printf("Digit count is now %d\n",digitCount);
if (numb2.length>offset) {
//printf("%c %c\n",numb1.str[numb1.length-offset-1],numb2.str[numb2.length-offset-1]);
int sum=((numb1.str[numb1.length-offset-1]-'0')+(numb2.str[numb2.length-offset-1]-'0'))+((carryover>0)?carryover--:0);
if (sum>=10) {
carryover=1;
sum-=10;
}
str[offset]=sum+'0';
} else {
str[offset]=numb1.str[numb1.length-offset-1];
}
}
} else {
for (int offset=0;offset<numb2.length;offset++) {
str = realloc(str,++digitCount);
//printf("Digit count is now %d\n",digitCount);
if (numb1.length>offset) {
//printf("%c %c\n",numb1.str[numb1.length-offset-1],numb2.str[numb2.length-offset-1]);
int sum=((numb1.str[numb1.length-offset-1]-'0')+(numb2.str[numb2.length-offset-1]-'0'))+((carryover>0)?carryover--:0);
if (sum>=10) {
carryover=1;
sum-=10;
}
str[offset]=sum+'0';
} else {
str[offset]=numb2.str[numb2.length-offset-1];
}
}
}
if (carryover>0) {
str = realloc(str,++digitCount);
str[digitCount-1]='1';
}
for (int i=0;i<digitCount/2;i++) {
char c = str[i];
char c2 = str[digitCount-i-1];
str[digitCount-i-1]=c;
str[i]=c2;
}
struct String newStr = {digitCount,str};
return newStr;
}

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#define true 1
#define false 0
#define boolean char
#define byte char
struct String{
int length;
char*str;
};
struct String add(struct String numb1, struct String numb2);

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#include "utils.h" #include "utils.h"
/* /*
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.
If all the numbers from 1 to 1000 (one thousand) inclusive were written out in words, how many letters would be used?
https://projecteuler.net/problem=
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.
https://projecteuler.net/problem=17
*/ */
int main(int argc,char**argv) { int main(int argc,char**argv) {
printf("%s",add((struct String){7,"1845920"},(struct String){4,"1829"}).str); int totalCount=0;
int counter=1;
int i=1;
int hundredsDigit=-1;
int tensDigit=-1;
while (i<=1000) {
hundredsDigit=-1;
tensDigit=-1;
counter=i;
int currentCount=totalCount;
if (counter==1000) {
//onethousand (11)
totalCount+=11;
counter-=1000;
printf("onethousand");
}
if (counter>=100) {
hundredsDigit=counter/100;
switch (hundredsDigit) {
case 1:
case 2:
case 6:{
//onehundred (10)
totalCount+=10;
printf("%s",hundredsDigit==1?"one":hundredsDigit==2?"two":"six");
}break;
case 3:
case 7:
case 8:{
//threehundred (12)
totalCount+=12;
printf("%s",hundredsDigit==3?"three":hundredsDigit==7?"seven":"eight");
}break;
case 4:
case 5:
case 9:{
//fourhundred (11)
totalCount+=11;
printf("%s",hundredsDigit==4?"four":hundredsDigit==5?"five":"nine");
}break;
}
printf("hundred");
counter-=hundredsDigit*100;
}
if (counter>=10) {
tensDigit=counter/10;
if (tensDigit!=0) {
if (hundredsDigit!=-1) {
//and (3)
totalCount+=3;
printf("and");
}
if (counter<20) {
switch (counter) {
case 10:{
//ten (3)
totalCount+=3;
printf("ten");
}break;
case 11:{
//eleven (6)
totalCount+=6;
printf("eleven");
}break;
case 12:{
//twelve (5)
totalCount+=5;
printf("twelve");
}break;
case 13:
case 14:
case 19:{
//thirteen (8)
totalCount+=8;
printf("%s",counter==13?"thirteen":counter==14?"fourteen":"nineteen");
}break;
case 15:
case 16:{
//fifteen (7)
totalCount+=7;
printf("%s",counter==15?"fifteen":"sixteen");
}break;
case 17:
case 18:{
//seventeen (9)
totalCount+=9;
printf("%s",counter==17?"seventeen":"eighteen");
}break;
}
counter=0;
} else {
switch (tensDigit) {
case 2:
case 3:
case 8:
case 9:{
//twenty (6)
totalCount+=6;
printf("%s",tensDigit==2?"twenty":tensDigit==3?"thirty":tensDigit==8?"eighty":"ninety");
}break;
case 4:
case 5:
case 6:{
//forty (5)
totalCount+=5;
printf("%s",tensDigit==4?"forty":tensDigit==5?"fifty":"sixty");
}break;
case 7:{
//seventy (7)
totalCount+=7;
printf("seventy");
}break;
}
counter-=tensDigit*10;
}
}
}
if (counter>0) {
if (tensDigit==-1&&hundredsDigit!=-1) {
//and (3)
totalCount+=3;
printf("and");
}
switch (counter) {
case 1:
case 2:
case 6:{
//one (3)
totalCount+=3;
printf("%s",counter==1?"one":counter==2?"two":"six");
}break;
case 3:
case 7:
case 8:{
//three (5)
totalCount+=5;
printf("%s",counter==3?"three":counter==7?"seven":"eight");
}break;
case 4:
case 5:
case 9:{
//four (4)
totalCount+=4;
printf("%s",counter==4?"four":counter==5?"five":"nine");
}break;
}
}
printf(" %d:%d\n",i,totalCount-currentCount);
i++;
}
printf("%d",totalCount);
return 0; return 0;
} }
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