제출 #631373

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
631373		CDuong	Brunhilda’s Birthday (BOI13_brunhilda)	C++14	100 / 100	699 ms	157376 KiB

brunhilda

#include <bits/stdc++.h>
#define int long long
#define pb push_back
#define mp make_pair
#define ff first
#define ss second
#define endl '\n'
#define pii pair<int, int>
using namespace std;
const int mxN = 2e7;
const int mod = 1e9 + 7;
int m, Q, dp[mxN];
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    //freopen("Bai3.inp", "r", stdin);
    //freopen("Bai3.out", "w", stdout);
    cin >> m >> Q;
    for(int i = 1; i <= m; ++i){
        int p; cin >> p;
        for(int j = p - 1; j < mxN; j += p){
            dp[j] = max(dp[j], p - 1);
        }
    }
    for(int i = mxN - 2; i >= 0; --i){
        dp[i] = max(dp[i], dp[i + 1] - 1);
    }
    dp[0] = 0;
    for(int i = 1; i < mxN; ++i){
        if(dp[i] > 0){
            dp[i] = 1 + dp[i - dp[i]];
        }
        else{
            dp[i] = mod;
        }
    }
    while(Q--){
        int x; cin >> x;
        if(dp[x] >= mxN) cout << "oo" << endl;
        else cout << dp[x] << endl;
    }
}

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