Submission #564610

#	Time	Username	Problem	Language	Result	Execution time	Memory
564610		almothana05	Building Skyscrapers (CEOI19_skyscrapers)	C++14	0 / 100	125 ms	9208 KiB

skyscrapers

#include<bits/stdc++.h>
#define mod 1000000007
#define inf 100000000000000000
using namespace std;
unordered_map<int , unordered_map<int , int> >ist;
vector<vector<int> >num;
priority_queue<vector<int> >q;
vector<int>erg;
int main(){
   ios_base::sync_with_stdio(false);
    cin.tie(NULL);
   int menge , numm , nummer , que;
   cin >> menge >> que;
   for(int i = 0 ; i < menge ; i++){
      cin >> numm >> nummer;
      ist[numm][nummer] = i + 1;
      num.push_back({numm , nummer , i + 1});
   }
   ist[num[num.size() - 1][0]][num[num.size() - 1][1]] = 0;
   sort(num.begin() , num.end());
   q.push(num[num.size() - 1]);
   while(q.size()){
      int x = q.top()[0] , y = q.top()[1] , z = q.top()[2];
      // cout << z << "\n";
      erg.push_back(z);
      q.pop();
      for(int i = -1 ; i <= 1 ; i++){
         for(int j = -1 ; j <= 1 ; j++){
            if(ist[x + i][y + j] > 0){
              q.push({x + i , y + j , ist[x + i][y + j]});
              ist[x + i][y + j] = 0;
            }
         }
      }
   }
   if(erg.size() == menge){
      cout << "YES\n";
      for(int i = 0 ; i < erg.size() ; i++){
         cout << erg[i] << "\n";
      }
   }
   else{
      cout << "NO\n";
   }
}

Compilation message (stderr)

skyscrapers.cpp: In function 'int main()':
skyscrapers.cpp:36:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   36 |    if(erg.size() == menge){
      |       ~~~~~~~~~~~^~~~~~~~
skyscrapers.cpp:38:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |       for(int i = 0 ; i < erg.size() ; i++){
      |                       ~~^~~~~~~~~~~~

• Subtask 1: 0 / 8
• Subtask 2: 0 / 14
• Subtask 3: 0 / 12
• Subtask 4: 0 / 17
• Subtask 5: 0 / 20
• Subtask 6: 0 / 10
• Subtask 7: 0 / 19