Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
142832 伊建润 A+B 输入输出练习I C++ Compile Error 0 MS 0 KB 146 2026-01-11 16:20:51

Tests(0/0):

Code:

#include <iostream> int main() { int a,b,c,d; while (cin>>a>>b>>c>>d) { cout << a + b << endl<<c+d; } return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:4:12: error: 'cin' was not declared in this scope
     while (cin>>a>>b>>c>>d) {
            ^
Main.cc:4:12: note: suggested alternative:
In file included from Main.cc:1:0:
/usr/include/c++/5/iostream:60:18: note:   'std::cin'
   extern istream cin;  /// Linked to standard input
                  ^
Main.cc:5:9: error: 'cout' was not declared in this scope
         cout << a + b << endl<& __os)
     ^