View Code of Problem 1

#include<stdio.h>
int main()
{
scanf("%d %d",&a,&b);
  printf("%d",a+b);
  return 0;

}
/*
Main.c: In function 'main':
Main.c:4:16: error: 'a' undeclared (first use in this function)
 scanf("%d %d",&a,&b);
                ^
Main.c:4:16: note: each undeclared identifier is reported only once for each function it appears in
Main.c:4:19: error: 'b' undeclared (first use in this function)
 scanf("%d %d",&a,&b);
                   ^
*/