제출 #1144797

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1144797		speedy_boy	Vepar (COCI21_vepar)	C++20	30 / 70	392 ms	49356 KiB

Main

#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;

//#define int long long
#define pb push_back
#define F first
#define S second
const int mod = 1e9 + 7;
const int N = 1e7 + 5;
const int INF = 1e9;

bool p[N];
int cnt[N];
vector<int> v;

void sieve(){
    fill(p + 2 , p + N , 1);
    for(int i = 2; i * i < N; i++){
        if(p[i]){
            for(int j = i * i; j < N; j += i)
                p[j] = 0;
        }
    }
}

void solve()
{
    int a , b , c , d;
    cin >> a >> b >> c >> d;
    fill(cnt , cnt + N , 0);
    int n = d;
    for(int i = 2; i <= n; i++){
        if(!p[i])   continue;
        int p = i;
        while(p <= n){
            cnt[i] += n / p;
            p *= i;
        }
    }
    n = a - 1;
    for(int i = 2; i <= n; i++){
        if(!p[i])   continue;
        int p = i;
        while(p <= n){
            cnt[i] += n / p;
            p *= i;
        }
    }
    n = b;
    for(int i = 2; i <= n; i++){
        if(!p[i])   continue;
        int p = i;
        while(p <= n){
            cnt[i] -= n / p;
            p *= i;
        }
    }
    n = c - 1;
    for(int i = 2; i <= n; i++){
        if(!p[i])   continue;
        int p = i;
        while(p <= n){
            cnt[i] -= n / p;
            p *= i;
        }
    }

    for(int i = 2; i < N; i++){
        if(!p[i])   continue;
        if(cnt[i] < 0){
            cout << "NE" << '\n';
            return ;
        }
    }
    cout << "DA" << '\n';
}

signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    sieve();
    int T = 1;
    cin >> T;
    while (T--)
        solve();

}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10