제출 #381913

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
381913		VEGAnn	Vepar (COCI21_vepar)	C++14	70 / 70	349 ms	43876 KiB

Main

#include <bits/stdc++.h>
#define PB push_back
using namespace std;
typedef long long ll;
const int MX = int(1e7) + 10;
const int oo = 2e9;
vector<int> prms;
int mn[MX];

int get_cnt(int l, int r, int cr){
    ll po = cr;
    int res = 0;

    while (po <= r){
        res += (r / po) - ((l - 1) / po);
        po *= cr;
    }

    return res;
}

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);

#ifdef _LOCAL
    freopen("in.txt","r",stdin);
#endif // _LOCAL

    fill(mn, mn + MX, oo);

    for (int i = 2; i < MX; i++){
        if (mn[i] < oo) continue;

        mn[i] = i;

        prms.PB(i);

        if (ll(i) * ll(i) > MX) continue;

        for (int j = i * i; j < MX; j += i)
            mn[j] = min(mn[j], i);
    }

    int qq; cin >> qq;

    for (; qq; qq--){
        int a, b, c, d;

        cin >> a >> b >> c >> d;

        bool ok = 1;

        for (int cr : prms){
            int fi = get_cnt(a, b, cr);
            int se = get_cnt(c, d, cr);

            if (fi > se){
                ok = 0;
                break;
            }
        }

        cout << (ok ? "DA\n" : "NE\n");
    }

    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10