Submission #738804

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
738804	2023-05-09 13:54:42	Kenjikrab	Rainforest Jumps (APIO21_jumps)	C++14	100 / 100	3108 ms	45856 KiB

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#include "jumps.h"
#include<bits/stdc++.h>
using namespace std;
int const n_max=2e5+10;
int const h_max=18;
int rit[n_max][h_max],lef[n_max][h_max],hi[n_max][h_max];
int n;
vector<int> a;
void init(int N, vector<int> H)
{
    n=N;
    a=H;
    stack<int> stk;
    for(int i=0;i<n;i++)lef[i][0]=rit[i][0]=hi[i][0]=i;
    for(int i=0;i<n;i++)
    {
        while(!stk.empty()&&a[stk.top()]<a[i]) stk.pop();
        if(stk.empty()) lef[i][0]=i;
        else lef[i][0]=stk.top();
        stk.push(i);
    }
    while(!stk.empty())stk.pop();
    for(int i=n-1;i>=0;i--)
    {
        while(!stk.empty()&&a[stk.top()]<a[i]) stk.pop();
        if(stk.empty()) rit[i][0]=i;
        else rit[i][0]=stk.top();
        stk.push(i);
    }
 
 
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• Subtask 1: 4 / 4
• Subtask 2: 8 / 8
• Subtask 3: 13 / 13
• Subtask 4: 12 / 12
• Subtask 5: 23 / 23
• Subtask 6: 21 / 21
• Subtask 7: 19 / 19