Submission #890257

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
890257	2023-12-20 20:30:59	Dec0Dedd	Rainforest Jumps (APIO21_jumps)	C++14	100 / 100	862 ms	63172 KiB

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#include <bits/stdc++.h>
using namespace std;
const int N = 2e5+10;
const int K = 18;
const int INF = 1e9;
int up[K][N], mvr[K][N], mvl[K][N], h[N], idx[N], lh[N], rh[N], n;
int sp[K][N], lg[N];
int que(int l, int r) {
    int i=lg[r-l+1];
    return max(sp[i][l], sp[i][r-(1<<i)+1]);
}
void init(int N, std::vector<int> H) {
    n=N;
    for (int i=0; i<n; ++i) h[i+1]=H[i], idx[h[i+1]]=i+1;
    h[0]=INF-1, h[n+1]=INF;
    stack<int> st; st.push(0);
    for (int i=1; i<=n; ++i) {
        while (h[st.top()] <= h[i]) st.pop();
        assert(!st.empty());
        lh[i]=st.top(), st.push(i);
    } st=stack<int>();
    for (int i=1; i<=n; ++i) sp[0][i]=h[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