Submission #757336

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
757336	2023-06-13 05:30:27	The_Samurai	Brunhilda’s Birthday (BOI13_brunhilda)	C++17	100 / 100	381 ms	80204 KiB

brunhilda

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#include "bits/stdc++.h"
using namespace std;
bool isPrime(int n) {
    for (int i = 2; i * i <= n; i++) {
        if (n % i == 0) {
            return false;
        }
    }
    return n > 1;
}
int INF = 1e9;
int main() {
    ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
    clock_t startTime = clock();
    int n, q, N = 1e7;
    cin >> n >> q;
    vector<int> primes(n), g(N + 1), dp(N + 1, INF);
    iota(g.begin(), g.end(), 0);
    for (int &p: primes) {
        cin >> p;
    }
    sort(primes.rbegin(), primes.rend());
    for (int i = 0; i < n; i++) {
        int p = primes[i], nextp;
        if (i + 1 < n) {
            nextp = primes[i + 1];
 
 
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Compilation message (stderr)

brunhilda.cpp: In function 'int main()':
brunhilda.cpp:18:13: warning: unused variable 'startTime' [-Wunused-variable]
   18 |     clock_t startTime = clock();
      |             ^~~~~~~~~
brunhilda.cpp:35:45: warning: 'nextp' may be used uninitialized in this function [-Wmaybe-uninitialized]
   35 |                 if (i + 1 < n and j > k - k % nextp) {
      |                                           ~~^~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 60 / 60