Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
149365 zlx 02长方形的面积 C++ Compile Error 0 MS 0 KB 112 2026-03-09 17:25:07

Tests(0/0):

Code:

#include<bits/stdc++.h> using namespace std; int main(){ int a=1000,b=220; cout<<1000-4*b=120; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:5:18: error: no match for 'operator=' (operand types are 'std::basic_ostream' and 'int')
    cout<<1000-4*b=120;
                  ^
In file included from /usr/include/c++/5/istream:39:0,
                 from /usr/include/c++/5/sstream:38,
                 from /usr/include/c++/5/complex:45,
                 from /usr/include/c++/5/ccomplex:38,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:52,
                 from Main.cc:1:
/usr/include/c++/5/ostream:402:7: note: candidate: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator=(std::basic_ostream<_CharT, _Traits>&&) [with _CharT = char; _Traits = std::char_traits]
       operator=(basic_ostream&& __rhs)
       ^
/usr/include/c++/5/ostream:402:7: note:   no known conversion for argument 1 from 'int' to 'std::basic_ostream&&'
Main.cc:4:8: warning: unused variable 'a' [-Wunused-variable]
    int a=1000,b=220;
        ^