Submission #1110195

#	Time	Username	Problem	Language	Result	Execution time	Memory
1110195		thunopro	Card Collection (JOI24_collection)	C++14	0 / 100	2 ms	2384 KiB

Main

#include<bits/stdc++.h>
using namespace std ; 
#define maxn 200009
#define ll long long 
#define pb push_back 
#define fi first 
#define se second 
#define left id<<1
#define right id<<1|1 
#define re exit(0); 
#define _lower(x) lower_bound(v.begin(),v.end(),x)-v.begin()+1 
#define TIME ( 1.0*clock() / CLOCKS_PER_SEC )
const int mod = 1e9+7 ;
const int INF = 1e9 ; 

typedef vector<int> vi ; 
typedef pair<int,int> pii ; 
typedef vector<pii> vii ; 

template < typename T > void chkmin ( T &a , T b ) { if ( a > b ) a = b ; } 
template < typename T > void chkmax ( T &a , T b ) { if ( a < b ) a = b ; } 

void add ( int &a , int b ) 
{
	a += b ; 
	if ( a >= mod ) a -= mod ; 
	if ( a < 0 ) a += mod ; 
}

void rf () 
{
	freopen ("bai1.inp","r",stdin) ;
}

mt19937 rng (time(0)) ; 

int _pow ( int a , int n ) 
{
	if ( n == 0 ) return 1 ; 
	int res = _pow (a,n/2) ; 
	if ( n % 2 ) return 1ll*res*res%mod*a%mod ; 
	else return 1ll*res*res%mod ; 
}


int n , m ; 
pii a [maxn] ; 
pii b [maxn] ; 
bool used [maxn] ; 
int main () 
{
	ios_base::sync_with_stdio(0); 
	cin.tie(0);cout.tie(0); 
//	rf () ;
	cin >> n >> m ; 
	for ( int i = 1 ; i <= n ; i ++ ) cin >> a [i].fi >> a [i].se ; 
	for ( int i = 1 ; i <= m ; i ++ ) cin >> b [i].fi >> b [i].se ; 
	
	int N = n-1 ; 
	for ( int mask = 0 ; mask < (1<<N) ; mask ++ ) 
	{
		int init_x = a[1].fi , init_y = a[1].se ; 
		for ( int i = 0 ; i < N ; i ++ ) 
		{
			if ( mask >> i & 1 ) chkmin(init_x,a[i+2].fi) , chkmin(init_y,a[i+2].se) ; 
			else chkmax(init_x,a[i+2].fi) , chkmax(init_y,a[i+2].se) ; 
		}
		for ( int i = 1 ; i <= m ; i ++ ) 
		{
			if ( init_x == b[i].fi && init_y == b [i].se )
			{
				used [i] = true ; 
			}
		}
	}
	for ( int i = 1 ; i <= m ; i ++ ) if ( used [i] ) cout << i << " " ; 

}

Compilation message (stderr)

Main.cpp: In function 'void rf()':
Main.cpp:32:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |  freopen ("bai1.inp","r",stdin) ;
      |  ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 11
• Subtask 2: 0 / 38
• Subtask 3: 0 / 22
• Subtask 4: 0 / 29