Submission #90741

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
90741	2018-12-24 08:17:43	minhtung0404	Cake (CEOI14_cake)	C++17	100 / 100	488 ms	5504 KiB

cake

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#include<bits/stdc++.h>
const int N = 250005;
using namespace std;
int n, st, a[N], q, last[20], it[N << 2], cnt;
void init(int i, int l, int r){
    if (l == r){
        it[i] = a[l];
        return;
    }
    int mid = (l + r) >> 1;
    init(i << 1, l, mid); init(i << 1 | 1, mid+1, r);
    it[i] = max(it[i << 1], it[i << 1 | 1]);
}
void update(int i, int l, int r, int pos, int val){
    if (l > pos || pos > r) return;
    if (l == r){
        it[i] = val;
        return;
    }
    int mid = (l + r) >> 1;
    update(i << 1, l, mid, pos, val); update(i << 1 | 1, mid+1, r, pos, val);
    it[i] = max(it[i << 1], it[i << 1 | 1]);
}
int get(int i, int l, int r, int L, int R){
    if (L > r || l > R) return -1;
    if (L <= l && r <= R) return it[i];
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 15 / 15
• Subtask 3: 20 / 20
• Subtask 4: 50 / 50