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Co-authored-by: sigonasr2 <sigonasr2@gmail.com>
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sigonasr2, Sig, Sigo 2022-07-14 18:12:17 +00:00 committed by GitHub
parent ebaee399f6
commit 4b540993b3
2 changed files with 19 additions and 14 deletions
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src/main.c
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#include "utils.h" #include "utils.h"
/* /*
The sum of the squares of the first ten natural numbers is, By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13.
The square of the sum of the first ten natural numbers is, What is the 10 001st prime number?
Hence the difference between the sum of the squares of the first ten natural numbers and the square of the sum is . https://projecteuler.net/problem=7
Find the difference between the sum of the squares of the first one hundred natural numbers and the square of the sum.
https://projecteuler.net/problem=6
*/ */
int main(int argc,char**argv) { int main(int argc,char**argv) {
int sumOfSquares=0,squareOfSum=0; FILE*f=fopen("archives/primegenerator/primes","r");
for (int i=0;i<=100;i++) { int count=0;
sumOfSquares+=i*i; while (count!=10000) {
int c = fgetc(f);
if (c==',') {
count++;
printf("Found comma #%d\n",count);
}
} }
for (int i=0;i<=100;i++) { int c;
squareOfSum+=i; long numb=0;
while ((c=fgetc(f))!=',') {
printf("Read %c\n",c);
numb*=10;
numb+=c-'0';
} }
squareOfSum*=squareOfSum; fclose(f);
printf("%d - %d = %d",squareOfSum,sumOfSquares,squareOfSum-sumOfSquares); printf("%ld",numb);
return 0; return 0;
} }