Submission #696132

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
696132	2023-02-05 15:50:02	sharaelong	Rainforest Jumps (APIO21_jumps)	C++17	100 / 100	2138 ms	53560 KiB

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#include "jumps.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
struct SegmentTree {
    int n, h;
    vector<pii> arr;
    SegmentTree(int _n) : n(_n) {
        h = Log2(n);
        n = 1 << h;
        arr.resize(2*n);
        for (int i=n; i<2*n; ++i) arr[i] = { 0, i-n };
        for (int i=n-1; i>=0; --i) arr[i] = { 0, arr[2*i].second };
    }
    void update(int pos, int c) {
        pos += n;
        arr[pos] = { c, pos-n };
        for (pos /= 2; pos > 0; pos /= 2) {
            arr[pos] = (arr[2*pos].first > arr[2*pos+1].first ? arr[2*pos] : arr[2*pos+1]);
        }
    }
    pii query(int l, int r) {
        l += n, r += n;
        pii ret = {0,-1};
        for (; l <= r; l/=2, r/=2) {
            if (l & 1) ret = (ret.first > arr[l].first ? ret : arr[l]), l++;
 
 
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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