Submission #307500

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
307500	2020-09-28 11:35:11	asifthegreat	Power Plant (JOI20_power)	C++17	100 / 100	412 ms	30856 KiB

power

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#include <bits/stdc++.h>
using namespace std;
const int N = 3e5;
vector<int>graph[N];
int dp[N];
string s = ":";
int res = 0;
void dfs(int v, int par){
    int mx = 0;
    for(auto c : graph[v]){
        if(c == par) continue;
        dfs(c, v);
        dp[v] += dp[c];
        mx = max(mx, dp[c]);
    }
    if(s[v] == '1') res = max(res, 1+mx);
    else res = max(res, dp[v]);
    dp[v] -= s[v]-'0';
    if(dp[v] <= 0 && s[v] == '1') dp[v] = 1;
    res = max(res, dp[v]);
}
int main(){
  int n;
  cin >> n;
  for(int i = 1; i < n;i++){
    int a,b;
 
 
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• Subtask 1: 6 / 6
• Subtask 2: 41 / 41
• Subtask 3: 53 / 53