#include <stdio.h> int main(void) { // your code goes here return 0; }
Standard input is empty
prog.c: In function ‘main’: prog.c:5:14: error: ‘a’ undeclared (first use in this function) scanf("%d",&a); ^ prog.c:5:14: note: each undeclared identifier is reported only once for each function it appears in
Standard output is empty