Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
92470 梁敖铭 求平方根 C++ Compile Error 0 MS 0 KB 174 2024-10-05 09:20:46

Tests(0/0):

Code:

#include <iostream> #include <cmath> int main() { double n; cin >> n; double squareRoot = sqrt(n); cout << squareRoot << endl; return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:6:1: error: 'cin' was not declared in this scope
 cin >> n;
 ^
Main.cc:6:1: 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:8:9: error: 'cout' was not declared in this scope
         cout  << squareRoot << endl;
         ^
Main.cc:8:9: note: suggested alternative:
In file included from Main.cc:1:0:
/usr/include/c++/5/iostream:61:18: note:   'std::cout'
   extern ostream cout;  /// Linked to standard output
                  ^
Main.cc:8:32: error: 'endl' was not declared in this scope
         cout  << squareRoot << endl;
                                ^
Main.cc:8:32: note: suggested alternative:
In file included from /usr/include/c++/5/iostream:39:0,
                 from Main.cc:1:
/usr/include/c++/5/ostream:590:5: note:   'std::endl'
     endl(basic_ostream<_CharT, _Traits>& __os)
     ^