제출 #1026812

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1026812		VMaksimoski008	Brunhilda’s Birthday (BOI13_brunhilda)	C++17	100 / 100	293 ms	79520 KiB

brunhilda

#include <bits/stdc++.h>
using namespace std;
const int maxn = 1e7 + 5;

vector<int> dp(maxn, 1e9), L(maxn, 1e9);

int main() {
    int n, q;
    cin >> n >> q;

    vector<int> p(n);
    for(int &x : p) cin >> x;

    L[0] = 0; dp[0] = 0;
    for(int &x : p)
        for(int i=0; i*x<1e7; i++) L[min((int)1e7, (i+1)*x-1)] = min(L[min((int)1e7, (i+1)*x-1)] , i * x);
    for(int i=1e7-1; i>=1; i--) L[i] = min(L[i], L[i+1]);

    for(int i=1; i<=1e7; i++) {
        if(L[i] >= i) dp[i] = 1e9;
        else dp[i] = dp[L[i]] + 1;
    }

    while(q--) {
        int x;
        cin >> x;
        if(dp[x] < 1e9) cout << dp[x] << '\n';
        else cout << "oo\n";
    }

    return 0;
}

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