제출 #626907

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
626907	2022-08-12 00:29:12	chonka	Swap (BOI16_swap)	C++17	100 / 100	746 ms	3652 KiB

swap

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#include<bits/stdc++.h>
using namespace std ;
typedef long long ll ;
const int MAXN = 2e5 + 7 ;
int n ;
int a[ MAXN ] ;
int get ( int wh , int val ) {
    if ( 2 * wh > n ) { return wh ; }
    if ( 2 * wh == n ) {
        if ( val < a[ 2 * wh ] ) { return wh ; }
        return 2 * wh ;
    }
    if ( val < a[ 2 * wh ] && val < a[ 2 * wh + 1 ] ) { return wh ; }
    if ( a[ 2 * wh ] < val && a[ 2 * wh ] < a[ 2 * wh + 1 ] ) {
        return get ( 2 * wh , val ) ;
    }
    int x = a[ 2 * wh ] ;
    if ( x < val ) {
        int sr1 = get ( 2 * wh , x ) ;
        int sr2 = get ( 2 * wh + 1 , x ) ;
        if ( sr1 < sr2 ) {
            return get ( 2 * wh + 1 , val ) ;
        }
        else {
            return get ( 2 * wh , val ) ;
        }
    }
 
 
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