OJ Board

I tried this problem and gives me wa, and pass all the cases that are proposed and many more that I've proposed, I ask them to suggest cases or any error in the code

int main()
{
long emp=0;
long sum=0;
long sol=0;
long tmp=0;
long num[7];

while(1)
{
sum = 0;
sol =0;
memset(num,0 ...