Submission #958289

#	Time	Username	Problem	Language	Result	Execution time	Memory
958289		vjudge1	Swapping Cities (APIO20_swap)	C++14	0 / 100	0 ms	440 KiB

swap

#include<bits/stdc++.h>
using namespace std ;
#define maxn 250009 
#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()/CLOCK_PERS_SEC) 

const int mod = 1e9+7 ; 
const int INF = 1e9 ; 

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

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

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

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 ; 
}

mt19937 rng(time(0)) ; 

//#include "grader.h" 

int n , m ; 
vi u , v , w ; 
int Max_w ; 
void init ( int N , int M , vi U , vi V , vi W ) 
{
	n = N , m = M , u = U , v = V , w = W ; 
	for ( auto x : W ) chkmax (Max_w,x) ; 
}
int getMinimumFuelCapacity ( int x , int y ) 
{
	if ( n == 2 ) return -1 ; 
	return Max_w ; 
}

Compilation message (stderr)

swap.cpp: In function 'void rf()':
swap.cpp:33:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |  freopen("bai1.inp","r",stdin) ;
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 6
• Subtask 2: 0 / 7
• Subtask 3: 0 / 17
• Subtask 4: 0 / 20
• Subtask 5: 0 / 23
• Subtask 6: 0 / 27