제출 #991668

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
991668		gutzzy	Vepar (COCI21_vepar)	C++17	30 / 70	4 ms	1368 KiB

Main

#include <bits/stdc++.h>
#define int long long
using namespace std;

int count(int n, int p){
    int c = 0;
    while(n>0){
        n /= p;
        c += n;
    }
    return c;
}

int32_t main(){
    int t,a,b,c,d;
    int maxn = 100000;
    cin >> t;
    vector<int> prime(maxn,true);
    prime[0] = false;
    prime[1] = false;
    for(int i=2;i<maxn;i++){
        if(prime[i]){
            for(int j=i*i;j<=maxn;j+=i){
                prime[j] = false;
            }
        }
    }
    while(t--){
        cin >> a >> b >> c >> d;
        bool ans = true;
        for(int i=2;i<maxn;i++){
            if(!prime[i]) continue;
            int pr = i;
            if(count(b,pr)-count(a-1,pr)>count(d,pr)-count(c-1,pr)){
                ans = false;
                break;
            }
        }
        if(ans) cout << "DA" << endl;
        else cout << "NE" << endl;
    }
    return 0;
}

• 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