제출 #300650

#제출 시각아이디문제언어결과실행 시간메모리
300650ElyesChaabouni통행료 (IOI18_highway)C++14
컴파일 에러
0 ms0 KiB
#include "highway.h" #include<bits/stdc++.h> using namespace std; vector<pair<int, int> >v[90005]; bool vu[90005]; /*int ask(vector<int>w) { for(int i = 0; i < w.size(); i++) cout << w[i] << ' '; int x; cin >> x; return x; } void answer(int a, int b) { cout << "ANSWR:\n" << a << ' ' << b; }*/ void find_pair(int N, std::vector<int> U, std::vector<int> V, int A, int B) { int M = U.size(); vector<int>w(M); for(int i = 0; i < M; i++) w[i]=0; long long x=ask(w); int l=0, r=M-1; while(l != r) { int med=(l+r)/2; for(int i = 0; i <= med; i++) w[i]=1; long long cu = ask(w); if(cu!=x) r=med; else l=med+1; for(int i = 0; i <= med; i++) w[i]=0; } //cout << l << '\n'; for(int i = 0; i < M; i++) { v[U[i]].push_back(make_pair(V[i], i)); v[V[i]].push_back(make_pair(U[i], i)); } for(int i = 0; i < 90005; i++) vu[i]=0; vector<pair<int, int> >bfs; vu[U[l]]=1; for(int i = 0; i < v[U[l]].size(); i++) { if(v[U[l]][i].second!=l) { bfs.push_back(v[U[l]][i]); vu[v[U[l]][i].first]=1; } } for(int i = 0; i < bfs.size(); i++) { for(int j = 0; j < v[bfs[i].first].size(); j++) { if(!vu[v[bfs[i].first][j].first] && v[bfs[i].first][j].first != ((bfs[i].first^U[bfs[i].second])^V[bfs[i].second])) { bfs.push_back(v[bfs[i].first][j]); vu[v[bfs[i].first][j].first]=1; } } } /*for(int i = 0; i < bfs.size(); i++) cout << bfs[i].first << ' '; cout << '\n';*/ for(int i = 0; i < w.size(); i++) w[i]=0; for(int i = 0; i < bfs.size(); i++) { //cout << bfs[i].first << ' '; //vu[bfs[i].first]=1; } for(int i = 0; i < M; i++) { if(vu[U[i]] && vu[V[i]]) w[i]=1; } long long cu1=ask(w); int node1, node2; if(cu1==x) { node1=U[l]; } else { int l1=0; int r1=bfs.size()-1; while(l1 != r1) { int med=(l1+r1)/2; for(int i = 0; i <= med; i++) w[bfs[i].second]=0; long long cu11=ask(w); if(cu11==x) r1=med; else l1=med+1; for(int i = 0; i <= med; i++) w[bfs[i].second]=1; } node1=bfs[l1].first; } bfs.clear(); for(int i = 0; i < 90005; i++) vu[i]=0; vu[V[l]]=1; for(int i = 0; i < v[V[l]].size(); i++) { if(v[V[l]][i].second != l) { bfs.push_back(v[V[l]][i]); vu[v[V[l]][i].first] } } for(int i = 0; i < bfs.size(); i++) { for(int j = 0; j < v[bfs[i].first].size(); j++) { if(!vu[v[bfs[i].first][j].first] && v[bfs[i].first][j].first != (bfs[i].first^U[bfs[i].second]^V[bfs[i].second])) { bfs.push_back(v[bfs[i].first][j]); vu[v[bfs[i].first][j].first]; } } } for(int i = 0; i < bfs.size(); i++) { //cout << bfs[i].first << ' '; //vu[bfs[i].first]=1; } //cout << '\n'; for(int i = 0; i < w.size(); i++) w[i]=0; for(int i = 0; i < M; i++) { if(vu[U[i]] && vu[V[i]]) w[i]=1; } //cout << "here\n"; cu1=ask(w); if(cu1==x) { node2=V[l]; } else { int l1=0; int r1=bfs.size()-1; while(l1 != r1) { int med=(l1+r1)/2; for(int i = 0; i <= med; i++) w[bfs[i].second]=0; long long cu11=ask(w); if(cu11==x) r1=med; else l1=med+1; for(int i = 0; i <= med; i++) w[bfs[i].second]=1; } node2=bfs[l1].first; } answer(node1, node2); } /*int main() { freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); find_pair(7, {0, 1, 2, 5, 7, 5, 3, 3}, {2, 2, 5, 8, 5, 6, 2, 4}, 1, 2); }*/

컴파일 시 표준 에러 (stderr) 메시지

highway.cpp: In function 'void find_pair(int, std::vector<int>, std::vector<int>, int, int)':
highway.cpp:50:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |  for(int i = 0; i < v[U[l]].size(); i++)
      |                 ~~^~~~~~~~~~~~~~~~
highway.cpp:58:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |  for(int i = 0; i < bfs.size(); i++)
      |                 ~~^~~~~~~~~~~~
highway.cpp:60:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |   for(int j = 0; j < v[bfs[i].first].size(); j++)
      |                  ~~^~~~~~~~~~~~~~~~~~~~~~~~
highway.cpp:72:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |  for(int i = 0; i < w.size(); i++)
      |                 ~~^~~~~~~~~~
highway.cpp:74:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |    for(int i = 0; i < bfs.size(); i++)
      |                   ~~^~~~~~~~~~~~
highway.cpp:113:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  113 |  for(int i = 0; i < v[V[l]].size(); i++)
      |                 ~~^~~~~~~~~~~~~~~~
highway.cpp:118:24: error: expected ';' before '}' token
  118 |    vu[v[V[l]][i].first]
      |                        ^
      |                        ;
  119 |   }
      |   ~                     
highway.cpp:121:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  121 |  for(int i = 0; i < bfs.size(); i++)
      |                 ~~^~~~~~~~~~~~
highway.cpp:123:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  123 |   for(int j = 0; j < v[bfs[i].first].size(); j++)
      |                  ~~^~~~~~~~~~~~~~~~~~~~~~~~
highway.cpp:132:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  132 |  for(int i = 0; i < bfs.size(); i++)
      |                 ~~^~~~~~~~~~~~
highway.cpp:138:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  138 |  for(int i = 0; i < w.size(); i++)
      |                 ~~^~~~~~~~~~