Submission #872984

#	Time	Username	Problem	Language	Result	Execution time	Memory
872984		aeg	Vepar (COCI21_vepar)	C++17	30 / 70	80 ms	16076 KiB

Main

#include <iostream>
#include <vector>

using namespace std;

#define PB push_back

const int maxn = 1e7 + 5;

bool prime[maxn];
vector<int> primes;

inline int szfact (int a, int p){
    int ret = 0;
    for(int i=p; i<=a; i*=p) {
        ret += a/i;
    }
    return ret;
}

inline void solve() {
    int a,b,c,d;
    cin >> a >> b >> c >> d;
    for(auto p:primes) {
        if(szfact(b,p)-szfact(a-1,p)>szfact(d,p)-szfact(c-1,p)) {
            cout << "NE\n";
            return;
        }
    }
    cout << "DA\n";
}

int main() {
    cin.tie(NULL)->sync_with_stdio(false);
    int t;
    cin >> t;
    for(int i=2; i<maxn; i++) {
        if(prime[i]) continue;
        for(int j=i*2; j<=1e7+1; j+=i) prime[j] = true;
        primes.PB(i);
    }
    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