oj.uz

답안 #872984

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
872984 2023-11-14T08:34:26 Z aeg Vepar (COCI21_vepar) C++17
30 / 70
 80 ms 16076 KB 
#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
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 63 ms 16072 KB Output is correct
2 Correct 79 ms 15736 KB Output is correct
3 Correct 59 ms 14528 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 64 ms 15560 KB Output is correct
2 Correct 69 ms 15976 KB Output is correct
3 Correct 67 ms 16076 KB Output is correct
4 Correct 68 ms 15816 KB Output is correct
5 Correct 56 ms 14540 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 16076 KB Output is correct
2 Correct 80 ms 14696 KB Output is correct
3 Correct 69 ms 15048 KB Output is correct
4 Correct 66 ms 15564 KB Output is correct
5 Correct 67 ms 15564 KB Output is correct

Subtask #4
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 59 ms 15648 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 72 ms 15052 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 68 ms 14540 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 72 ms 15308 KB Output isn't correct
2 Halted 0 ms 0 KB -