Submission #199685

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
199685	2020-02-02 18:37:44	dolphingarlic	Editor (BOI15_edi)	C++14	100 / 100	276 ms	52600 KiB

edi

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#include <bits/stdc++.h>
#define FOR(i, x, y) for (int i = x; i < y; i++)
typedef long long ll;
using namespace std;
int anc[300001][20], mn[300001][20], ans[300001];
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n;
    cin >> n;
    FOR(i, 1, n + 1) {
        int x;
        cin >> x;
        if (x > 0) {
            ans[i] = x;
            anc[i][0] = i;
        } else {
            x = -x;
            int curr = i - 1;
            for (int j = 19; ~j; j--) if (mn[curr][j] >= x) curr = anc[curr][j];
            anc[i][0] = curr - 1;
            ans[i] = ans[curr - 1];
            mn[i][0] = x;
            FOR(j, 1, 20) {
                anc[i][j] = anc[anc[i][j - 1]][j - 1];
                mn[i][j] = min(mn[i][j - 1], mn[anc[i][j - 1]][j - 1]);
            }
        }
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 15 / 15
• Subtask 3: 28 / 28
• Subtask 4: 37 / 37