Submission #32048

#	Time	Username	Problem	Language	Result	Execution time	Memory
32048		chonka	Unscrambling a Messy Bug (IOI16_messy)	C++98	100 / 100	4 ms	640 KiB

messy

#include<iostream>
#include<stdio.h>
#include<vector>
#include<string>

#include "messy.h"


using namespace std ;

#define MAXN 157
int N ;

void init ( int l , int r ) {
    if ( l >= r ) { return ; }
    int i ;
    string cur ;
    cur.clear ( ) ;
    for ( i = 0 ; i < N ; i ++ ) {
        cur += '1' ;
    }
    for ( i = l ; i <= r ; i ++ ) {
        cur[ i ] = '0' ;
    }
    int mid = ( l + r ) / 2 ;
    for ( i = l ; i <= mid ; i ++ ) {
        cur[ i ] = '1' ;
        add_element ( cur ) ;
        cur[ i ] = '0' ;
    }
    init ( l , mid ) ;
    init ( mid + 1 , r ) ;
}
vector < int > solve ( vector < int > v ) {
    if ( v.size ( ) <= 1 ) { return v ; }
    int i ;
    string cur ;
    cur.clear ( ) ;
    for ( i = 0 ; i < N ; i ++ ) {
        cur += '1' ;
    }
    int sz = v.size ( ) ;
    for ( i = 0 ; i < sz ; i ++ ) {
        cur[ v[ i ] ] = '0' ;
    }
    vector < int > l , r ;
    l.clear ( ) ;
    r.clear ( ) ;
    for ( i = 0 ; i < sz ; i ++ ) {
        cur[ v[ i ] ] = '1' ;
        if ( check_element ( cur ) == true ) {
            l.push_back ( v[ i ] ) ;
        }
        else {
            r.push_back ( v[ i ] ) ;
        }
        cur[ v[ i ] ] = '0' ;
    }

    l = solve ( l ) ;
    r = solve ( r ) ;
    sz = r.size ( ) ;
    for ( i = 0 ; i < sz ; i ++ ) {
        l.push_back ( r[ i ] ) ;
    }
    return l ;
}

std::vector<int> restore_permutation(int n, int w, int r) {
    N = n ;
    init ( 0 , n - 1 ) ;
    compile_set();
    int i , j ;
    vector < int > aux ;
    aux.clear ( ) ;
    for ( i = 0 ; i < n ; i ++ ) {
        aux.push_back ( i ) ;
    }
    aux = solve ( aux ) ;
    vector < int > ret ;
    ret.clear ( ) ;
    for ( i = 0 ; i < n ; i ++ ) {
        for ( j = 0 ; j < n ; j ++ ) {
            if ( aux[ j ] == i ) { ret.push_back ( j ) ; break ; }
        }
    }
    return ret ;
}

• Subtask 1: 20 / 20
• Subtask 2: 18 / 18
• Subtask 3: 11 / 11
• Subtask 4: 21 / 21
• Subtask 5: 30 / 30