Submission #958304

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
958304	2024-04-05 11:04:10	thunopro	Swapping Cities (APIO20_swap)	C++14	37 / 100	2068 ms	13140 KiB

swap

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#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 ;} 
 
 
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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: 17 / 17
• Subtask 4: 20 / 20
• Subtask 5: 0 / 23
• Subtask 6: 0 / 27