Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
136238 张智博 统计硬币 C++ Compile Error 0 MS 0 KB 484 2025-11-09 22:27:13

Tests(0/0):

Code:

#include <bits/stdc++.h> using namespace std; int main() { int T; cin >> T; while (T--) { int n,m; cin>>n>>m; int s = 0; for (int i=0;i<=n;++i) { for (int j=0;j<=n-a;++j) { int a = n-i-j; int sum = i*1+j*2+a*5; if (sum == m) s++; } } cout<<s<<endl; } return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:13:31: error: 'a' was not declared in this scope
             for (int j=0;j<=n-a;++j) 
                               ^