Problem link: http://www.lightoj.com/volume_showproblem.php?problem=1000
Solution:
This is a EOF related problem.
#include<stdio.h> int main() { int counter,t,a,b,sum,i; counter=0; scanf("%d",&t); for(i=0;i<t;i++) { scanf("%d %d",&a,&b); sum=a+b;++counter; printf("Case %d: %d\n",counter,sum); } return 0; }