Submission #388333

#	Time	Username	Problem	Language	Result	Execution time	Memory
388333		phathnv	Vepar (COCI21_vepar)	C++11	30 / 70	1591 ms	78604 KiB

Main

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

typedef long long ll;

const int N = 1e7 + 7;

int p[N], cnt[N];

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

    for(int i = 2; i < N; i++){
        if (p[i])
            continue;
        for(int j = i; j < N; j += i)
            p[j] = i;
    }

    int t;
    cin >> t;
    while (t--){
        int a, b, c, d;
        cin >> a >> b >> c >> d;
        memset(cnt, 0, sizeof(cnt));
        for(int i = a; i <= b; i++){
            int x = i;
            while (x > 1){
                cnt[p[x]]--;
                x /= p[x];
            }
        }
        for(int i = c; i <= d; i++){
            int x = i;
            while (x > 1){
                cnt[p[x]]++;
                x /= p[x];
            }
        }

        bool ok = 1;
        for(int i = 1; i < N; i++)
            ok &= (cnt[i] >= 0);
        cout << (ok? "DA" : "NE") << '\n';
    }

    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