Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
114188 唐安轩 打印三角形 C++ Compile Error 0 MS 0 KB 209 2025-03-22 11:06:29

Tests(0/0):

Code:

using namespace std; int main(){ int a; cin>>a; for(int i=1;i<=a;i++){ for(int y=1;y<=a-i;y++){ cout<<' '; } for(int j=1;j<=i*2-1;j++){ cout<<'*'; } cout<<endl; } return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:4:2: error: 'cin' was not declared in this scope
  cin>>a;
  ^
Main.cc:7:4: error: 'cout' was not declared in this scope
    cout<<' ';
    ^
Main.cc:10:4: error: 'cout' was not declared in this scope
    cout<<'*';
    ^
Main.cc:12:3: error: 'cout' was not declared in this scope
   cout<