hell world

#include<stdio.h>
int main()
{
printf("hell world\");
return 0;
}

简单的加法程序

#include<stdio.h>
int main()
{
  int unm1 = 0;
  int unm2 = 0;
  int sum = 0;
  scanf("%d%d", &unm1, &unm2);
  sum = unm1 + unm2;
  printf("sum=%d\n", sum);
  return 0;
}