Submission #529052

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
529052	2022-02-22 04:01:39	d2k05	Power Plant (JOI20_power)	C++14	47 / 100	1571 ms	34840 KiB

power

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <bits/stdc++.h>
#define fastio ios_base :: sync_with_stdio(0), cin.tie(0);
using namespace std;
using ll = long long;
const int mxN = 1e6 + 5, mod = 1e9 + 7;
int n, d[mxN], b[mxN], ans; string a;
vector <int> adj[mxN];
void calc(int v, int p = -1) {
  int cnt = 0;
  for (auto to : adj[v]) {
    if (to != p) {
      calc(to, v);
      if (d[to] > 0)
        ++cnt;
      d[v] += d[to];
    }
  }
  if (cnt <= 1 && p == -1) 
    d[v] += a[v - 1];
  else {
    if (d[v] > 0) 
      d[v] -= a[v - 1];
    if (!d[v]) 
      d[v] = a[v - 1];
  }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

• Subtask 1: 6 / 6
• Subtask 2: 41 / 41
• Subtask 3: 0 / 53