Compile Error

foo.cc: In function 'int main()':
foo.cc:6:2: error: 'cin' was not declared in this scope
  cin>>a>>b;
  ^~~
foo.cc:6:2: note: suggested alternative: 'main'
  cin>>a>>b;
  ^~~
  main
foo.cc:7:2: error: 'cout' was not declared in this scope
  cout<<a+b<<endl;
  ^~~~
foo.cc:7:13: error: 'endl' was not declared in this scope
  cout<<a+b<<endl;
             ^~~~
foo.cc:7:13: note: suggested alternative: 'enum'
  cout<<a+b<<endl;
             ^~~~
             enum
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信息

递交者
类型
自测
题目
迟到的 A+B
语言
C++
递交时间
2021-07-12 08:29:37
评测时间
2021-07-12 08:29:37
评测机
分数
0
总耗时
0ms
峰值内存
0 Bytes