Submission #1110179

#	Time	Username	Problem	Language	Result	Execution time	Memory
1110179		thunopro	Growing Vegetables is Fun 5 (JOI24_vegetables5)	C++14	4 / 100	71 ms	7504 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 ; 
int a [maxn] ; 
int b [maxn] , c [maxn] ; 
int res = INF ; 

pii T [maxn] ; 
int tt [maxn] ; 
void check1 () 
{
	int ans = 0 ;  
	int Prev = -1 ; 
	int Max = 0 , cur = 0 ; 
	for ( int i = 1 ; i <= 2*n ; i ++ ) 
	{
		chkmax (ans,abs (T[tt[i]].fi-a[i])); 
		if ( T[tt[i]].se == Prev ) cur ++ ; 
		else cur = 1 ; 
		Prev = T[tt[i]].se ; 
		chkmax (Max,cur) ; 
	}
	if ( Max == n ) chkmin (res,ans) ; 
}
void sub1 () 
{
	for ( int i = 1 ; i <= n ; i ++ ) T [i] = {b[i],0} , T [i+n] = {c[i],1} ; 
	for ( int i = 1 ; i <= 2*n ; i ++ ) tt [i] = i ; 
	check1() ; 
	while (next_permutation(tt+1,tt+2*n+1)) check1() ; 
	cout << res << "\n" ; 
}
int main () 
{
	ios_base::sync_with_stdio(0); 
	cin.tie(0);cout.tie(0); 
//	rf () ;
	cin >> n ; 
	for ( int i = 1 ; i <= 2*n ; i ++ ) cin >> a [i] ; 
	for ( int i = 1 ; i <= n ; i ++ ) cin >> b [i] ; 
	for ( int i = 1 ; i <= n ; i ++ ) cin >> c [i] ; 
	
	if ( n <= 5 ) sub1 () ; 	

}

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: 4 / 4
• Subtask 2: 0 / 5
• Subtask 3: 0 / 21
• Subtask 4: 0 / 37
• Subtask 5: 0 / 33