121501

Run ID	作者	问题	语言	测评结果	Time	Memory	代码长度	提交时间
121501	王培臻	09闰年第n个月有多少天	C++	Compile Error	0 MS	0 KB	363	2025-06-07 15:16:11

Tests(0/0):

Code:

#include<bits/stdc++.h> using namespace std; int main(){ int a; cin>>a; switch( a){ case 1: case 3: case 5: case 7: case 8: case 10: case 12: cout<<31; break; case 2: cout<<29; break; case 2: case 4: case 6: case 9: case 11: break; default : cout<<"Invalid."; } return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:21:3: error: duplicate case value
   case 2:
   ^
Main.cc:18:3: error: previously used here
   case 2:
   ^