Submission #1172391

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1172391	2025-03-23 12:15:50	DanielPr8	Railway (BOI17_railway)	C++20	23 / 100	1095 ms	17628 KiB

railway

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#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vll = vector<ll>;
using vvl = vector<vll>;
using pll = pair<ll,ll>;
using vpl = vector<pll>;
using vvp = vector<vpl>;
#define f first
#define s second
#define pb push_back
#define all(v) v.begin(),v.end()
vll ed, sz;
vvp g;
void dfs(ll cr, ll pr){
    for(pll i:g[cr]){
        if(i.f!=pr){
            dfs(i.f,cr);
            sz[cr]+=sz[i.f];
            if(sz[i.f]>0){
                ed[i.s]++;
            }
        }
    }
}
int main(){
    ios_base::sync_with_stdio(0);cin.tie(NULL);
    ll n, m, k, a ,b, s;
    cin >> n >> m >> k;
    g = vvp(n);
 
 
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• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 0 / 7
• Subtask 4: 0 / 29
• Subtask 5: 0 / 16
• Subtask 6: 0 / 25