Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
159666 周谨严 09闰年第n个月有多少天 C++ Compile Error 0 MS 0 KB 585 2026-09-06 12:15:44

Tests(0/0):

Code:

#include<iostream> using namespace std; int main(){ int n; cin>>n; switch(n){ case 1: cout<<"31"; break; case 2: cout<<"29"; break; case 3: cout<<"31"; break; case 4: cout<<"30"; break; case 5: cout<<"31"; break; case 6: cout<<"30"; break; case 7: cout<<"31"; break; case 8: cout<<"31"; break; case 9: cout<<"30"; break; case 10: cout<<"31"; break; case 11: cout<<"30"; break; case 12: cout<<"31"; break; } if(n>12){ cout<<Invalid; } }

Run Info:

Main.cc: In function 'int main()':
Main.cc:45:9: error: 'Invalid' was not declared in this scope
   cout<