Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
149356 xyc 02买礼物 C++ Compile Error 0 MS 0 KB 102 2026-03-09 17:22:43

Tests(0/0):

Code:

#include <iostream> using namespace std; int main(){ int a=1000,b=220; cout<<1000-4*220=120; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:5:17: error: no match for 'operator=' (operand types are 'std::basic_ostream' and 'int')
 cout<<1000-4*220=120;
                 ^
In file included from /usr/include/c++/5/iostream:39:0,
                 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:4:5: warning: unused variable 'a' [-Wunused-variable]
 int a=1000,b=220;
     ^
Main.cc:4:12: warning: unused variable 'b' [-Wunused-variable]
 int a=1000,b=220;
            ^