where is the problem
#include<stdio.h>

int main(void)
{
 int a,b,sum;
 printf("a:");
 scanf("%d",a);

 printf("b:");
 scanf("%d",&b);

 sum=a+b;
 printf("Sum=%d",sum);

 return 0;
}

Edited by author 03.12.2015 01:58

http://acm.timus.ru/help.aspx?topic=judge&locale=en

The program must print only the data that is required by the problem statement. The program must not print any prompts (“Enter N:”). The program must not wait for pressing a key at the end of execution.

And. Did you run it locally? Try please.

You should have crash here: scanf("%d",a);

scanf("%d",a);



scanf("%d",&a);