oj.uz

답안 #834062

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
834062 2023-08-22T10:28:51 Z NemanjaSo2005 Magic Tree (CEOI19_magictree) C++17
0 / 100
 2000 ms 16124 KB 
#include<bits/stdc++.h>
#define ll long long
using namespace std;
map<int,ll> update[100005];
vector<int> stablo[100005],Brisi;
int N,M,K,rod[100005],vred[100005],kad[100005];
void dfs(int gde){
   if(stablo[gde].size()==0){
      if(kad[gde]==-1)
         return;
      update[gde][kad[gde]]=vred[gde];
      return;
   }
   for(int i=0;i<stablo[gde].size();i++)
      dfs(stablo[gde][i]);
   int najv=0;
   for(int i=1;i<stablo[gde].size();i++)
      if(update[stablo[gde][i]].size()>update[najv].size())
         najv=stablo[gde][i];
   swap(update[gde],update[najv]);
   for(int i=0;i<stablo[gde].size();i++){
      if(stablo[gde][i]==najv)
         continue;
      int koji=stablo[gde][i];
      for(auto it=update[koji].begin();it!=update[koji].end();it++)
         update[gde][it->first]+=it->second;
   }
   if(kad[gde]!=-1){
      update[gde][kad[gde]]+=vred[gde];
      auto it=update[gde].upper_bound(kad[gde]);
      ll vel=vred[gde];
     // Brisi.clear();
     // Brisi.shrink_to_fit();
      for(it;it!=update[gde].end();it++){
         if(it->second<=vel){
            vel-=it->second;
            Brisi.push_back(it->first);
         }
         else{
            it->second-=vel;
            break;
         }
      }
      for(int i=0;i<Brisi.size();i++)
         update[gde].erase(Brisi[i]);
   }
   for(int i=0;i<stablo[gde].size();i++){
      update[stablo[gde][i]].clear();
   }
   return;
}
int main(){
   ios_base::sync_with_stdio(false);
   cin.tie(0);
   cin>>N>>M>>K;
   for(int i=2;i<=N;i++){
      cin>>rod[i];
      stablo[rod[i]].push_back(i);
   }
   for(int i=1;i<=N;i++)
      kad[i]=-1;
   int a;
   for(int i=1;i<=M;i++){
      cin>>a;
      cin>>kad[a]>>vred[a];
   }
   dfs(1);
   ll res=0;
   for(auto it=update[1].begin();it!=update[1].end();it++)
      res+=it->second;
   cout<<res<<"\n";
   return 0;
}

Compilation message

magictree.cpp: In function 'void dfs(int)':
magictree.cpp:14:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |    for(int i=0;i<stablo[gde].size();i++)
      |                ~^~~~~~~~~~~~~~~~~~~
magictree.cpp:17:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |    for(int i=1;i<stablo[gde].size();i++)
      |                ~^~~~~~~~~~~~~~~~~~~
magictree.cpp:21:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |    for(int i=0;i<stablo[gde].size();i++){
      |                ~^~~~~~~~~~~~~~~~~~~
magictree.cpp:34:11: warning: statement has no effect [-Wunused-value]
   34 |       for(it;it!=update[gde].end();it++){
      |           ^~
magictree.cpp:44:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |       for(int i=0;i<Brisi.size();i++)
      |                   ~^~~~~~~~~~~~~
magictree.cpp:47:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |    for(int i=0;i<stablo[gde].size();i++){
      |                ~^~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Incorrect 3 ms 7380 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 52 ms 12156 KB Output is correct
2 Execution timed out 2088 ms 16124 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7508 KB Output is correct
2 Incorrect 6 ms 7508 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 314 ms 10172 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Incorrect 3 ms 7380 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 8020 KB Output is correct
2 Correct 24 ms 10184 KB Output is correct
3 Correct 24 ms 10188 KB Output is correct
4 Correct 20 ms 10196 KB Output is correct
5 Correct 10 ms 9044 KB Output is correct
6 Incorrect 207 ms 12408 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #7
0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Incorrect 3 ms 7380 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #8
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Incorrect 3 ms 7380 KB Output isn't correct
4 Halted 0 ms 0 KB -