Submission #530526

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
530526	2022-02-25 17:25:37	4fecta	Cake 3 (JOI19_cake3)	C++17	24 / 100	186 ms	67888 KiB

cake3

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#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define int ll
#define ld long double
#define pii pair<int, int>
#define f first
#define s second
#define boost() cin.tie(0), cin.sync_with_stdio(0)
const int MN = 2005;
int n, m, dp[MN][MN];
pii a[MN];
void solve(int j, int l, int r, int p1, int p2) {
    if (l > r) return;
    int mid = (l + r) >> 1, opt = 0;
    for (int p = p1; p <= min(p2, mid - 1); p++) {
        if (dp[mid][j] < dp[p][j - 1] + a[mid].s - a[mid].f + a[p].f) {
            dp[mid][j] = dp[p][j - 1] + a[mid].s - a[mid].f + a[p].f;
            opt = p;
        }
    }
    solve(j, l, mid - 1, p1, opt), solve(j, mid + 1, r, opt, p2);
}
int32_t main() {
    boost();
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 19 / 19
• Subtask 3: 0 / 76