Submission #503819

#	Time	Username	Problem	Language	Result	Execution time	Memory
503819		colossal_pepe	Pinball (JOI14_pinball)	C++17	51 / 100	3 ms	460 KiB

pinball

#include <iostream>
#include <map>
#include <tuple>
using namespace std;

typedef long long ll;

const ll INF = 1e18;

int n, m, a[1005], b[1005], c[1005];
ll d[1005], dpl[1005], dpr[1005];

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n >> m;
    for (int i = 0; i < n; i++) {
        cin >> a[i] >> b[i] >> c[i] >> d[i];
    }
    for (int i = 0; i < n; i++) {
        dpl[i] = dpr[i] = INF;
        if (a[i] == 1) dpl[i] = 0;
        if (b[i] == m) dpr[i] = 0;
        for (int j = 0; j < i; j++) {
            if (a[i] <= c[j] and c[j] <= b[i]) {
                dpl[i] = min(dpl[i], dpl[j] + d[j]);
                dpr[i] = min(dpr[i], dpr[j] + d[j]);
            }
        }
    }
    ll ans = INF;
    for (int i = 0; i < n; i++) {
        ans = min(ans, dpl[i] + dpr[i] + d[i]);
    }
    cout << (ans >= INF ? -1 : ans) << '\n';
    return 0;
}

• Subtask 1: 11 / 11
• Subtask 2: 18 / 18
• Subtask 3: 22 / 22
• Subtask 4: 0 / 49