提交记录 28940 - Judge Duck Online

用户	题目	状态	得分	用时	内存	语言	代码长度
cgy20140502	1000i. 【传统题】 A+B Problem	Compile Error	0	0 ns	0 KB	C++	103 B

提交时间	评测时间
2026-04-13 18:00:15	2026-04-13 18:00:18

代码

#include <bits/stdc++.h>
int main() {
    int a,b;
    cin >> a >> b;
    cout << a+b;
    return 0;
}

评测结果

Compilation

N/A

Compile Error

Score: N/A

显示更多

jp_data/tasks/91eba124371f11f1aa5f39b1dd43d4ae/contestant.cpp: In function ‘int main()’:
jp_data/tasks/91eba124371f11f1aa5f39b1dd43d4ae/contestant.cpp:4:5: error: ‘cin’ was not declared in this scope; did you mean ‘std::cin’?
    4 |     cin >> a >> b;
      |     ^~~
      |     std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:75,
                 from jp_data/tasks/91eba124371f11f1aa5f39b1dd43d4ae/contestant.cpp:1:
/usr/include/c++/9/iostream:60:18: note: ‘std::cin’ declared here
   60 |   extern istream cin;  /// Linked to standard input
      |                  ^~~
jp_data/tasks/91eba124371f11f1aa5f39b1dd43d4ae/contestant.cpp:5:5: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
    5 |     cout << a+b;
      |     ^~~~
      |     std::cout
In file included from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:75,
                 from jp_data/tasks/91eba124371f11f1aa5f39b1dd43d4ae/contestant.cpp:1:
/usr/include/c++/9/iostream:61:18: note: ‘std::cout’ declared here
   61 |   extern ostream cout;  /// Linked to standard output
      |                  ^~~~