Submission #882897

#	Time	Username	Problem	Language	Result	Execution time	Memory
882897		Matjaz	Sails (IOI07_sails)	C++14	15 / 100	1099 ms	4832 KiB

sails

//
//  IOI2007Sails.cpp
//  
//
//  Created by Matjaz Leonardis on 04/12/2023.
//

#include <iostream>
#include <vector>
#include <algorithm>
#include <queue>

using namespace std;

int INF = 100001;

int main(){
    
    int N;
    cin >> N;
    vector<int> H(N),K(N);
    for (int i=0;i<N;i++) cin >> H[i] >> K[i];
    
    vector<int> S(100001);
    
    for (int i=N-1;i>=0;i--){
        
        priority_queue<pair<int,int> > Q;
        for (int j=1;j<=H[i];j++) Q.push(make_pair(-S[j], j));
        
        for (int j=0;j<K[i];j++){
            S[Q.top().second]++; Q.pop();
        }
    }
    
    long long total=0;
    
    for (int i=0;i<S.size();i++){
        total += ((long long)S[i] * (S[i] - 1)) / 2;
    }
    
    cout << total << endl;
    
    
    return 0;
}

Compilation message (stderr)

sails.cpp: In function 'int main()':
sails.cpp:38:19: 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<S.size();i++){
      |                  ~^~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 5
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10
• Subtask 11: 0 / 10