language: C++ 4.7.2 (gcc-4.7.2)
date: 1011 days 6 hours ago
link:
visibility: public 
1
2
3
4
5
6
7
8
9
10
11

#include <stdio.h>
 
int main()
{
int a, s;
printf("Enter value of a");
scanf ("%d",&a);
s=++a + ++a;
printf("%d",a);
printf("%d",s);
}
prog.cpp: In function ‘int main()’:
prog.cpp:7: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result