Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
142285 曹奕晗 07大小写转换 C++ Compile Error 0 MS 0 KB 236 2026-01-04 18:49:20

Tests(0/0):

Code:

#include<iostream> using namespace std; int main() { char 'a'; cin>>a; if(a<='z'&&'a'>=a) { cout<<(char)(a-32); } else { if(a<='Z'&&a<='A') { cout<<(char)(a+32); } else { cout<<a; } } }

Run Info:

Main.cc: In function 'int main()':
Main.cc:5:7: error: expected unqualified-id before 'a'
  char 'a';
       ^
Main.cc:6:7: error: 'a' was not declared in this scope
  cin>>a;
       ^