Submission #1004492

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1004492	2024-06-21 09:25:31	coolboy19521	Railway (BOI17_railway)	C++17	0 / 100	50 ms	29524 KiB

railway

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#pragma GCC optimize("Ofast")
#include"bits/stdc++.h"
#define int long long
using namespace std;
const int sz = 1e5 + 5;
const int sm = 25;
vector<vector<int>> aj[sz];
int mp[sz], mn[sz];
int up[sm][sz];
vector<int> r;
int dp[sz];
int k;
void dfs1(int v, int p = 0, int d = 1) {
    up[0][v] = p;
    dp[v] = d;
    for (auto& u : aj[v]) {
        int to = u[0];
        if (to != p) {
            dfs1(to, v, d + 1);
        }
    }
}
void dfs2(int v, int p = 0, int s = 0) {
    s += mp[v];
    s -= mn[v];
 
 
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• Subtask 1: 0 / 8
• Subtask 2: 0 / 15
• Subtask 3: 0 / 7
• Subtask 4: 0 / 29
• Subtask 5: 0 / 16
• Subtask 6: 0 / 25