Submission #467590

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
467590	2021-08-23 18:33:34	izhang05	Railway (BOI17_railway)	C++17	100 / 100	315 ms	44792 KiB

railway

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#include <bits/stdc++.h>
using namespace std;
//#define DEBUG
void setIO(const string &name) {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cin.exceptions(istream::failbit);
#ifdef LOCAL
    freopen((name + ".in").c_str(), "r", stdin);
    freopen((name + ".out").c_str(), "w", stdout);
    freopen((name + ".out").c_str(), "w", stderr);
#endif
}
const int inf = 0x3f3f3f3f, mod = 1e9 + 7, maxn = 1e5 + 5, maxs = 20;
vector<pair<int, int>> adj[maxn];
int up[maxn][maxs], depth[maxn], n, tin[maxn];
vector<int> order;
int jmp(int x, int d) {
    for (int i = 0; i < maxs; i++) {
        if ((d >> i) & 1) {
            x = up[x][i];
        }
    }
    return x;
}
 
 
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• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 7 / 7
• Subtask 4: 29 / 29
• Subtask 5: 16 / 16
• Subtask 6: 25 / 25