Submission #511456

#	Time	Username	Problem	Language	Result	Execution time	Memory
511456		Jean7	Pod starim krovovima (COCI20_psk)	C++14	50 / 50	1 ms	332 KiB

Main

#include <bits/stdc++.h>
#define fio ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define int long long

using namespace std ;

bool cmp ( pair<pair<int,int>,int> x , pair<pair<int,int>,int> y )
{
    if ( x.first.second == y.first.second ) return x.first.first > y.first.first ;
    return x.first.second > y.first.second ;
}
bool com ( pair<pair<int,int>,int> x , pair<pair<int,int>,int> y )
{
    return x.second < y.second ;
}

int32_t main ()
{
    fio
    int n , ans = 0 ;
    cin >> n ;
    pair <pair<int,int>,int> a[n] ;
    for ( int i = 0 ; i < n ; i++ )
    {
        cin >> a[i].first.first ;
        cin >> a[i].first.second ;
        a[i].second = i ;
    }
    sort ( a , a+n , cmp ) ;
    int i = 0 , j = n-1 ;
    while ( i < j )
    {
        int k = a[i].first.second - a[i].first.first ;
        if ( k > a[j].first.first )
        {
            a[i].first.first += a[j].first.first ;
            a[j].first.first = 0 ;
            j-- ;
        }
        else if ( k < a[j].first.first )
        {
            a[i].first.first += k ;
            i++ ;
            a[j].first.first -= k ;
        }
        else if ( k == a[j].first.first )
        {
            a[i].first.first += k ;
            i++ ;
            a[j].first.first = 0 ;
            j-- ;
        }
    }
    for ( auto it : a ) if ( it.first.first == 0 ) ans++ ;
    cout << ans << "\n" ;
    sort ( a , a+n , com ) ;
    for ( auto it : a ) cout << it.first.first << " " ;
    return 0 ;
}

• Subtask 1: 50 / 50