Submission #139933

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
139933	2019-08-01 16:54:24	nvmdava	Fireworks (APIO16_fireworks)	C++17	100 / 100	457 ms	93604 KiB

fireworks

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#include <bits/stdc++.h>
using namespace std;
#define ll long long
int p[300005];
int b[300005];
ll a[300005];
priority_queue<pair<long long, int> > pq[300005];
vector<int> ch[300005];
void dfs(int v){
   int big = 0;
   for(int& x : ch[v]){
      dfs(x);
      if(pq[big].size() < pq[x].size()) big = x;
   }
   if(big == 0){
      pq[v].push({0, -1});
      pq[v].push({a[v], 1});
      pq[v].push({a[v], 1});
      return;
   }
   swap(pq[big], pq[v]);
   int g = ch[v].size();
   for(auto& x : ch[v]){
      if(x == big) continue;
      while(!pq[x].empty()){
         pq[v].push(pq[x].top());
         pq[x].pop();
 
 
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Compilation message (stderr)

fireworks.cpp: In function 'void dfs(int)':
fireworks.cpp:41:25: warning: 't2' may be used uninitialized in this function [-Wmaybe-uninitialized]
    pq[v].push({t + a[v] + t2 - t, 1});
                ~~~~~~~~~^~~~
fireworks.cpp:40:18: warning: 't' may be used uninitialized in this function [-Wmaybe-uninitialized]
    pq[v].push({t + a[v], 1});
                ~~^~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 19 / 19
• Subtask 3: 29 / 29
• Subtask 4: 45 / 45