답안 #13465

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
13465	2015-02-21T03:55:26 Z	gs14004	scanf 함수 5 (BSC_0_7)	C++14	컴파일 오류	0 ms	0 KB

scanf5

#include <stdio.h>
  
int main(){
  int t,u;scanf("%d %d",&t,&u);printf("%g",0.5*(a+b));
}

Compilation message

scanf5.cpp: In function ‘int main()’:
scanf5.cpp:4:49: error: ‘a’ was not declared in this scope
   int t,u;scanf("%d %d",&t,&u);printf("%g",0.5*(a+b));
                                                 ^
scanf5.cpp:4:51: error: ‘b’ was not declared in this scope
   int t,u;scanf("%d %d",&t,&u);printf("%g",0.5*(a+b));
                                                   ^
scanf5.cpp:4:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   int t,u;scanf("%d %d",&t,&u);printf("%g",0.5*(a+b));
                               ^