제출 #1000490

#제출 시각아이디문제언어결과실행 시간메모리
1000490Joon_Yorigami9월 (APIO24_september)C++17
100 / 100
280 ms35948 KiB
/*
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*/
#include <bits/stdc++.h>
using namespace std;
int solve(int N, int M, vector<int> F, vector<vector<int>> S)
 {
     deque<int> toprocess;
     unordered_set<int> globalseen = {0};
     vector<unordered_set<int>> seen = {{},{},{},{},{}};
     vector<int> processed = {1,1,1,1,1};
     vector<int> tempchildren;
     for(int i=0; i<N; i++)
     {
         tempchildren.push_back(0);
     }
     for(int i=1; i<N; i++)
     {
         tempchildren[F[i]]+=1;
     }
     vector<vector<int>> children;
     for(int i=0; i<M; i++)
     {
         vector<int> temparr;
         temparr = tempchildren;
         children.push_back(temparr);
     }
     int ans = 0;
     for(int j=0; j<(N-1); j++)
     {
         bool check = true;
         for(int i=0; i<M; i++)
         {
             //i
             int num = S[i][j];
             deque<int>().swap(toprocess);
             globalseen.insert(num);
             seen[i].insert(num);
             toprocess.push_back(num);
             while(toprocess.size())
             {
                 num = toprocess[0];
                 toprocess.pop_front();
                 if(children[i][num] == 0)
                 {
                     children[i][F[num]] -=1 ;
                     processed[i] += 1;
                     if(children[i][F[num]] == 0 && seen[i].find(F[num])!=seen[i].end())
                     {
                         toprocess.push_back(F[num]);
                     }
                 }
             }
             check &= (processed[i]==globalseen.size());
         }
         if(check)
         {
             ans++;
         }
     }
     return ans;
 };
/*
int main()
{
    cout << solve(3, 1, {-1, 0, 0}, {{1, 2}}) << endl;
    cout << solve(5, 2, {-1, 0, 0, 1, 1}, {{1, 2, 3, 4}, {4, 1, 2, 3}}) << endl;
    return 0;
}
*/

컴파일 시 표준 에러 (stderr) 메시지

september.cpp: In function 'int solve(int, int, std::vector<int>, std::vector<std::vector<int> >)':
september.cpp:123:36: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'std::unordered_set<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  123 |              check &= (processed[i]==globalseen.size());
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