Submission #880815

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
880815	2023-11-30 05:48:36	vjudge1	Love Polygon (BOI18_polygon)	C++17	0 / 100	70 ms	15556 KiB

polygon

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#include <bits/stdc++.h>
#define pb push_back
using namespace std;
const int N = 1e5 + 10;
int n, t, cnt, ans;
bool mark[N];
vector<int> G[N];
unordered_map<string, int> mp;
void dfs(int v) {
    mark[v] = true;
    cnt++;
    int u = G[v][0];
    while (!mark[u]) cnt++, mark[u] = true, u = G[u][0];
    return;
}
int main() {
    ios:: sync_with_stdio(0), cin.tie(0);
    cin >> n;
    for (int i = 0; i < n; i++) {
        string u, v;
        cin >> u >> v;
        if (mp[u] == 0) mp[u] = ++t;
        if (mp[v] == 0) mp[v] = ++t;
        G[mp[u]].pb(mp[v]);
    }
    for (int i = 1; i <= n; i++)
 
 
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• Subtask 2: 0 / 25
• Subtask 3: 0 / 29
• Subtask 4: 0 / 25