Submission #1045173

#	Time	Username	Problem	Language	Result	Execution time	Memory
1045173		wood	Meetings (IOI18_meetings)	C++17	0 / 100	1 ms	600 KiB

meetings

#include "meetings.h"
#include <bits/stdc++.h>
using namespace std;
std::vector<long long> minimum_costs(std::vector<int> H, std::vector<int> L,
                                     std::vector<int> R) {
  int Q = L.size();
  std::vector<long long> C(Q);
  for (int j = 0; j < Q; ++j) {
	  map<int,int> backwards;
	  long long res = LLONG_MAX;
	  for(int i = R[j]; i>=L[j]; i--)backwards[H[i]]++;
	  int mx = 0;
	  for(int i = L[i]; i<=R[i]; i++){
		  mx = max(mx,H[i]);
		  backwards[H[i]]--; 
		  if(backwards[H[i]] == 0) backwards.erase(H[i]);
		  res = min(res,(long long)(i-L[i]+1)*mx+(R[i]-i)*backwards.rbegin()->first);
	  }
	  C[j] = res;
  }
  return C;
}

Compilation message (stderr)

meetings.cpp: In function 'std::vector<long long int> minimum_costs(std::vector<int>, std::vector<int>, std::vector<int>)':
meetings.cpp:13:19: warning: 'i' may be used uninitialized in this function [-Wmaybe-uninitialized]
   13 |    for(int i = L[i]; i<=R[i]; i++){
      |                   ^

• Subtask 1: 0 / 4
• Subtask 2: 0 / 15
• Subtask 3: 0 / 17
• Subtask 4: 0 / 24
• Subtask 5: 0 / 40