Submission #934274

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
934274	2024-02-27 04:46:59	tamir1	Magic Tree (CEOI19_magictree)	C++14	100 / 100	84 ms	29332 KiB

magictree

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#include<bits/stdc++.h>
#define ll long long
using namespace std;
ll n,m,k,i,day[100005],x[100005],node,d,w,p[100005],ans;
vector<ll> v[100005];
map<ll,ll> mp;
void dfs(ll a){
  map<ll,ll> mp2;
  for(ll i:v[a]){
    dfs(i);
    if(mp2.size()<mp.size()) swap(mp2,mp);
    for(auto [p,q]:mp){
      mp2[p]+=q;
    }
  }
  if(day[a]>0){
    mp2[day[a]]+=x[a];
    while(true){
      auto it=mp2.upper_bound(day[a]);
      if(it==mp2.end()) break;
      if(it->second<=x[a]){
        x[a]-=it->second;
        mp2.erase(it);
        continue;
      }
      it->second-=x[a];
      break;
    }
  }
  swap(mp2,mp);
 
 
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Compilation message (stderr)

magictree.cpp: In function 'void dfs(long long int)':
magictree.cpp:12:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   12 |   for(auto [p,q]:mp){
      |            ^
magictree.cpp: In function 'int main()':
magictree.cpp:47:11: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   47 |  for(auto [a,b]:mp) ans+=b;
      |           ^

• Subtask 1: 6 / 6
• Subtask 2: 3 / 3
• Subtask 3: 11 / 11
• Subtask 4: 12 / 12
• Subtask 5: 16 / 16
• Subtask 6: 13 / 13
• Subtask 7: 22 / 22
• Subtask 8: 17 / 17