Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
156725 谢绍澜 03大写字母转小写字母 C++ Compile Error 0 MS 0 KB 137 2026-07-09 17:18:03

Tests(0/0):

Code:

#include<bits/stdc++.h> usingnamespacestd; intmain(){ char a; cin>>a; a=char(a+32); cout<<a<<endl; return0; }

Run Info:

Main.cc:2:1: error: 'usingnamespacestd' does not name a type
 usingnamespacestd;
 ^
Main.cc:3:9: error: ISO C++ forbids declaration of 'intmain' with no type [-fpermissive]
 intmain(){
         ^
Main.cc: In function 'int intmain()':
Main.cc:5:5: error: 'cin' was not declared in this scope
     cin>>a;
     ^
Main.cc:5:5: note: suggested alternative:
In file included from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:74:0,
                 from Main.cc:1:
/usr/include/c++/5/iostream:60:18: note:   'std::cin'
   extern istream cin;  /// Linked to standard input
                  ^
Main.cc:7:5: error: 'cout' was not declared in this scope
     cout<& __os)
     ^
Main.cc:8:5: error: 'return0' was not declared in this scope
     return0;
     ^
Main.cc:9:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^