제출 #628887

#제출 시각아이디문제언어결과실행 시간메모리
628887hy_1열쇠 (IOI21_keys)C++17
컴파일 에러
0 ms0 KiB
#include <algorithm> #include <bitset> #include <complex> #include <deque> #include <exception> #include <fstream> #include <functional> #include <iomanip> #include <ios> #include <iosfwd> #include <iostream> #include <istream> #include <iterator> #include <limits> #include <list> #include <cmath> #include <locale> #include <map> #include <memory> #include <new> #include <numeric> #include <ostream> #include <queue> #include <set> #include <sstream> #include <stack> #include <stdio.h> #include <stdexcept> #include <streambuf> #include <string> #include <typeinfo> #include <utility> #include <valarray> #include <vector> #include <unordered_map> using namespace std; int dfs(int source , vector<int> &c , int vv , vector<vector<pair<int , int > > > &adj){ int cnt = 0; stack<int> st; st.push(source); set<int> stock; stock.insert(c[source]); vector<int> visited(vv , false); int cnt = 0; while(!st.empty()){ int cur = st.top(); st.pop(); visited[cur] = true; for(pair<int , int > i : adj[cur]){ if(visited[i.first] == false && (count(stock.begin() , stock.end() , i.second)) != 0){ st.push(i.first); visited[i.first] = true; cnt++; } } } return cnt; } vector<int> find_reachable(vector<int> r, vector<int> u, vector<int> v, vector<int> c) { vector<vector< pair<int, int > > > adj(r.size()); for(int j=0; j<u.size(); j++){ pair<int , int> you; you.first = v[j]; you.second = c[j]; adj[u[j]].push_back(you); pair<int , int> rr; rr.first = u[j]; rr.second = c[j]; adj[v[j]].push_back(rr); } vector<int> mx(r.size()); for(int i = 0; i <r.size(); i++){ mx[i] = dfs(i , c , r.size() , adj); } int y = *min_element(mx.begin() , mx.end()); vector<int> ans(r.size() , 0); for(int i=0; i <mx.size(); i++){ if(mx[i] == y) ans[i] = 1; } return ans; }

컴파일 시 표준 에러 (stderr) 메시지

keys.cpp: In function 'int dfs(int, std::vector<int>&, int, std::vector<std::vector<std::pair<int, int> > >&)':
keys.cpp:47:6: error: redeclaration of 'int cnt'
   47 |  int cnt = 0;
      |      ^~~
keys.cpp:41:6: note: 'int cnt' previously declared here
   41 |  int cnt = 0;
      |      ^~~
keys.cpp: In function 'std::vector<int> find_reachable(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
keys.cpp:65:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |  for(int j=0; j<u.size(); j++){
      |               ~^~~~~~~~~
keys.cpp:76:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |  for(int i  = 0; i <r.size(); i++){
      |                  ~~^~~~~~~~~
keys.cpp:82:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   82 |  for(int i=0; i <mx.size(); i++){
      |               ~~^~~~~~~~~~