Submission #1109492

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1109492	2024-11-06 23:49:56	nicksms	Tree (IOI24_tree)	C++17	100 / 100	213 ms	80108 KiB

tree

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#include "tree.h"
#include <bits/stdc++.h>
using namespace std;
using ll=long long;
using db=long double;
template<class T> using V=vector<T>;
using vi = V<int>;
using vl = V<ll>;
using pi = pair<int,int>;
#define f first
#define s second
#define sz(x) (int)((x).size())
#define each(a,b) for (auto &a : b)
const int MAXN = 1<<18;
int j[18][MAXN], jm[18][MAXN];
ll w[MAXN];
ll ans[MAXN], csum[MAXN], a0;
vi k[MAXN], legs[MAXN];
void dfs(int i, int p) {
  a0 += w[i]*(csum[i] = abs(1-sz(k[i])));
  if (sz(k[i]) == 0) return;
  j[0][i] = p;
  jm[0][i] = min(w[i], w[p]);
  for (int b = 1; b < 18; b++) {
    j[b][i] = j[b-1][j[b-1][i]];
    jm[b][i] = min(jm[b-1][i], jm[b-1][j[b-1][i]]);
 
 
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Compilation message (stderr)

tree.cpp: In function 'void init(std::vector<int>, std::vector<int>)':
tree.cpp:55:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |   for (int i = 0; i < P.size(); i++) {
      |                   ~~^~~~~~~~~~

• Subtask 0: 0 / 0
• Subtask 1: 10 / 10
• Subtask 2: 13 / 13
• Subtask 3: 18 / 18
• Subtask 4: 7 / 7
• Subtask 5: 11 / 11
• Subtask 6: 22 / 22
• Subtask 7: 19 / 19