Submission #601752

#	Time	Username	Problem	Language	Result	Execution time	Memory
601752		enerelt14	Meetings (IOI18_meetings)	C++14	19 / 100	583 ms	382248 KiB

meetings

#include "meetings.h"
#include<bits/stdc++.h>
#define pb push_back
using namespace std;
long long cost[5005][5005];
vector<long long> minimum_costs(vector<int> H, vector<int> L, vector<int> R){
  for (int i=0;i<H.size();i++){
    cost[i][i]=H[i];
    for(int j=i+1;j<H.size();j++){
      cost[i][j]=max(cost[i][j-1], 1LL*H[j]);
    }
  }
  for (int i=0;i<H.size();i++){
    for (int j=0;j<i;j++){
      cost[i][j]=cost[j][i];
    }
  }
  for (int i=0;i<H.size();i++){
    for (int j=0;j<H.size();j++){
      cost[i][j]+=cost[i][j-1];
    }
  }
  vector<long long>res;
  for (int i=0;i<L.size();i++){
    long long ans=1e15;
    for (int j=L[i];j<=R[i];j++){
      if (L[i]!=0)ans=min(ans, cost[j][R[i]]-cost[j][L[i]-1]);
      else ans=min(ans, cost[j][R[i]]);
    }
    res.pb(ans);
  }
  return res;
}

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:7:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 |   for (int i=0;i<H.size();i++){
      |                ~^~~~~~~~~
meetings.cpp:9:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |     for(int j=i+1;j<H.size();j++){
      |                   ~^~~~~~~~~
meetings.cpp:13:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |   for (int i=0;i<H.size();i++){
      |                ~^~~~~~~~~
meetings.cpp:18:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |   for (int i=0;i<H.size();i++){
      |                ~^~~~~~~~~
meetings.cpp:19:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for (int j=0;j<H.size();j++){
      |                  ~^~~~~~~~~
meetings.cpp:24:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |   for (int i=0;i<L.size();i++){
      |                ~^~~~~~~~~

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