View Code of Problem 1

#include<stdio.h>
main()
{
  int alb;
  scanf("%d",&a);
  scanf("%d",&b);
  printf("%d",a+b);
}
/*
Main.c:2:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()
 ^~~~
Main.c: In function 'main':
Main.c:5:15: error: 'a' undeclared (first use in this function)
   scanf("%d",&a);
               ^
Main.c:5:15: note: each undeclared identifier is reported only once for each function it appears in
Main.c:6:15: error: 'b' undeclared (first use in this function)
   scanf("%d",&b);
               ^
Main.c:4:7: warning: unused variable 'alb' [-Wunused-variable]
   int alb;
       ^~~
*/