Submission #152480

#	Time	Username	Problem	Language	Result	Execution time	Memory
152480		dolphingarlic	Brunhilda’s Birthday (BOI13_brunhilda)	C++14	8.10 / 100	296 ms	81144 KiB

brunhilda

#include <bits/stdc++.h>
#pragma GCC Optimize("O3")
#define FOR(i, x, y) for (int i = x; i < y; i++)
#define MAXN 10000001
typedef long long ll;
using namespace std;

ll dp[MAXN], p[100001];

int main() {
    iostream::sync_with_stdio(false);
    cin.tie(0);
    
    int n, q;
    cin >> n >> q;
    FOR(i, 0, n) cin >> p[i];

    fill(dp, dp + MAXN, -1);
    dp[0] = 0;
    FOR(i, 1, MAXN) {
        int indx = n - 1;
        while ((~indx) && i % p[indx] == 0) indx--;
        if (indx == -1) break;
        else dp[i] = dp[i - i % p[indx]] + 1;
    }

    FOR(i, 0, q) {
        int x;
        cin >> x;
        if (dp[x] == -1) cout << "oo\n";
        else cout << dp[x] << '\n';
    }
    return 0;
}

Compilation message (stderr)

brunhilda.cpp:2:0: warning: ignoring #pragma GCC Optimize [-Wunknown-pragmas]
 #pragma GCC Optimize("O3")

• Subtask 1: 1.1111111111111112 / 20
• Subtask 2: 5.555555555555555 / 20
• Subtask 3: 1.4285714285714286 / 60