Submission #378679

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
378679	2021-03-17 03:08:30	abc864197532	Chessboard (IZhO18_chessboard)	C++17	8 / 100	58 ms	3256 KiB

chessboard

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#include <bits/stdc++.h>
using namespace std;
#define lli long long int
#define pii pair<int, int>
#define pll pair<lli, lli>
#define X first
#define Y second
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define test(x) cout << #x << ' ' << x << endl
#define printv(x) {\
    for (auto a : x) cout << x << ' ';\
    cout << endl;\
}
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
const int N = 2000000;
int main () {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n, k;
    cin >> n >> k;
    vector <int> p;
    for (int i = 1; i < n; ++i) if (n % i == 0) p.pb(i);
    if (k == 0) {
        lli ans = 1ll * n * n;
        for (int i : p) {
            ans = min(ans, 1ll * i * i * (1ll * (n / i) * (n / i) / 2));
 
 
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• Subtask 1: 8 / 8
• Subtask 2: 0 / 8
• Subtask 3: 0 / 15
• Subtask 4: 0 / 16
• Subtask 5: 0 / 23
• Subtask 6: 0 / 30