Submission #981924

#	Time	Username	Problem	Language	Result	Execution time	Memory
981924		vjudge1	Sequence (APIO23_sequence)	C++17	11 / 100	2054 ms	9068 KiB

sequence

#include "sequence.h"
#include <bits/stdc++.h>
using namespace std;

int n;
int arr[100000];
int nums[100000];

int calcula(int l, int r){
  int t=r-l+1;
  for(int i=l, pos=0; i<=r; i++)
    nums[pos++]=arr[i];
  sort(nums, nums+t);
  int a=-1, b=-1;
  if(t%2==0){
    a=nums[t/2-1];
    b=nums[t/2];
  }
  else{
    a=nums[t/2];
  }
  int cnt1=0, cnt2=0;
  for(int i=0; i<t; i++){
    if(nums[i]==a)
      cnt1++;
    if(nums[i]==b)
      cnt2++;
  }
  return max(cnt1, cnt2);
}

int sequence(int N, std::vector<int> A) {
  n=N;
  for(int i=0; i<n; i++)
    arr[i]=A[i];
  int ans=0;
  for(int i=0; i<n; i++){
    for(int j=i+1; j<n; j++){
      int x=calcula(i, j);
      ans=max(ans, x);
    }
  }
  return ans;
}

• Subtask 1: 11 / 11
• Subtask 2: 0 / 17
• Subtask 3: 0 / 7
• Subtask 4: 0 / 12
• Subtask 5: 0 / 13
• Subtask 6: 0 / 22
• Subtask 7: 0 / 18