Submission #349857

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
349857	2021-01-18 14:27:32	doowey	Mousetrap (CEOI17_mousetrap)	C++14	100 / 100	1081 ms	260460 KiB

mousetrap

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
#define fi first
#define se second
#define mp make_pair
#define fastIO ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
const int N = (int)1e6 + 100;
vector<int> T[N];
vector<pii> lis[N];
int dp[N];
int up[N];
int pp[N];
int trap;
int mouse;
void dfs(int u, int par){
    int deg = 0;
    for(auto x : T[u]) if(x != par) deg ++ ;
    for(auto x : T[u]){
        if(x==par) continue;
        pp[x]=u;
        up[x] += up[u] + (par != -1) * (deg - 1);
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 25 / 25
• Subtask 3: 20 / 20
• Subtask 4: 35 / 35