Submission #1172708

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1172708	2025-03-24 07:14:06	anmattroi	Mechanical Doll (IOI18_doll)	C++17	100 / 100	72 ms	11164 KiB

doll

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#include "doll.h"
#include <bits/stdc++.h>
#define maxn 400005
#define fi first
#define se second
using namespace std;
using ii = pair<int, int>;
int N, nho, nt, cnt;
vector<int> a, X, Y;
int parity[maxn];
int build(int lo, int hi) {
    if (nho >= hi-lo+1) {
        nho -= hi-lo+1;
        return 1;
    }
    if (lo == hi)
        return INT_MAX/2;
    int mid = (lo + hi) >> 1, cur = ++nt;
    X[cur-1] = -build(lo, mid);
    Y[cur-1] = -build(mid+1, hi);
    return cur;
}
void dfs(int u, int lo, int hi) {
    if (lo == hi) {
        X[u-1] = a[cnt]; ++cnt;
        return;
 
 
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• Subtask 1: 2 / 2
• Subtask 2: 4 / 4
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 18 / 18
• Subtask 6: 56 / 56