Submission #874232

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
874232	2023-11-16 13:23:04	tvladm2009	Long Mansion (JOI17_long_mansion)	C++17	100 / 100	643 ms	66560 KiB

long_mansion

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#include <bits/stdc++.h>
using i64 = long long;
int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    int n;
    std::cin >> n;
    std::vector<int> a(n);
    std::vector<std::vector<int>> keys(n + 1), inds(n + 1);
    for (int i = 1; i < n; i++) {
        std::cin >> a[i];
    }
    for (int i = 1; i <= n; i++) {
        int m;
        std::cin >> m;
        keys[i].resize(m);
        for (int j = 0; j < m; j++) {
            std::cin >> keys[i][j];
            inds[keys[i][j]].push_back(i);
        }
    }
    auto check = [&](int l, int r, int x) {
        auto it = lower_bound(inds[x].begin(), inds[x].end(), l);
        return it != inds[x].end() && *it <= r;
    };
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 15 / 15
• Subtask 4: 75 / 75