Submission #493678

#	Time	Username	Problem	Language	Result	Execution time	Memory
493678		goodluck2020	Brunhilda’s Birthday (BOI13_brunhilda)	C++14	20 / 100	160 ms	636 KiB

brunhilda

#include <bits/stdc++.h>
#define task "brunhilda"

using namespace std;
const int N = 1e4 + 5;
int m, q, A[N];
namespace sub1
{
    int dp[N];
    void solve()
    {
        for(int i = 1; i <= 1e4; i++) dp[i] = 1e9;
        for(int i = 1; i <= 1e4; i++)
            for(int j = 1; j <= m; j++)
            dp[i] = min(dp[i], dp[i - i % A[j]] + 1);
        while(q--)
        {
            int n;
            cin >> n;
            if(dp[n] == 1e9) cout << "oo" << '\n';
            else cout << dp[n] << '\n';
        }
    }
}
int main()
{
    if(fopen(task ".inp","r"))
    {
        freopen(task ".inp","r",stdin);
        freopen(task ".out","w",stdout);
    }
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> m >> q;
    for(int i = 1; i <= m; i++) cin >> A[i];
    if(m <= 1e4 && q <= 1e4) sub1::solve();
}

Compilation message (stderr)

brunhilda.cpp: In function 'int main()':
brunhilda.cpp:29:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |         freopen(task ".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
brunhilda.cpp:30:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |         freopen(task ".out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 60