#include <stdio.h> int main() { int a; return }
Standard input is empty
prog.c: In function ‘main’: prog.c:8:1: error: expected expression before ‘}’ token } ^ prog.c:5:1: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a); ^~~~~~~~~~~~~~~
Standard output is empty