Submission #972991

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
972991	2024-05-01 11:37:10	bachhoangxuan	Rainforest Jumps (APIO21_jumps)	C++17	100 / 100	905 ms	53076 KiB

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#include "jumps.h"
#include <bits/stdc++.h>
using namespace std;
const int maxn = 2e5+5;
const int maxl = 20;
int N,H[maxn],P[maxn],lt[maxn],rt[maxn];
int jmp[maxn][maxl],nxt[maxn][maxl],Max[maxn][maxl];
void init(int _N, vector<int> _H) {
    N=_N;
    for(int i=0;i<N;i++){
        H[i+1]=_H[i];
        P[H[i+1]]=i+1;
    }
    vector<int> v;
    for(int i=1;i<=N;i++){
        while(!v.empty() && H[v.back()]<H[i]) v.pop_back();
        rt[i]=(v.empty()?0:v.back());
        v.push_back(i);
    }
    v.clear();
    for(int i=N;i>=1;i--){
        while(!v.empty() && H[v.back()]<H[i]) v.pop_back();
        jmp[i][0]=lt[i]=(v.empty()?0:v.back());
        v.push_back(i);
        nxt[i][0]=(H[rt[i]]>H[lt[i]]?rt[i]:lt[i]);
        Max[i][0]=H[i];
    }
    for(int i=1;i<18;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