I was trying to solve the Euler problem number 50, and wrote the following code and got the answer as,

no. of primes = 536

and prime value is 958577

But, when i search the answer for this on internet, it says 543 primes and prime is 997651

why does my program ends even if the sum is not > than 1000000 ???

```
#include<stdio.h>
#include<stdlib.h>
void prime(); // generates prime
int send_prime(long int); // used to send the generated prime
int check_prime(long int); // checks whether obtained sum is prime or not
long int sum = 0;
long int p = 0; // count of primes
int main()
{
prime();
return 0;
}
void prime() {
int count = 0;
for(long int i = 2 ; i <= 1000000 ; i++) {
count = 0;
for(long int j = 2 ; j <= (i/2) ; j++) {
if(i%j == 0) {
count++;
break;
}
}
if(count == 0) {
p++; // number of prime incremented
int check = send_prime(i);
if(check == 0) // to check is sum goes beyond 1 million
break;
}
}
}
int send_prime(long int x) {
sum = sum + x;
if(sum > 1000000)
return 0;
int u = check_prime(sum);
if(u == 1 && sum < 1000000) {
printf("\nnumber of terms = %d\n",p);
printf("\n%d\n",sum);
return 1;
}
else
return 1;
}
int check_prime(long int x) {
int count = 0;
for(long int i = 2 ; i <= x/2 ; i++) {
if(x%i == 0) {
count++;
break;
}
}
if(count == 0)
return 1;
else
return 0;
}
```