Submission #943848

#	Time	Username	Problem	Language	Result	Execution time	Memory
943848		thunopro	Speedrun (RMI21_speedrun)	C++14	Compilation error	0 ms	0 KiB

speedrun

#include<bits/stdc++.h>
using namespace std ; 
#define maxn 1009
#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 ; 
}

#include "speedrun.h"

//int bit [maxn] ; 
//int LENGTH ;
//int cur ; 
//bool adj [maxn][maxn] ; 
//
//void setHintLen ( int l ) 
//{
//	LENGTH = l ; 
//}
//void setHint ( int i , int j , bool b ) 
//{
//	bit [i] |= (1<<j) ; 
//}
//int getLength () 
//{
//	return LENGTH ; 
//}
//bool getHint ( int j ) 
//{
//	return (bit[cur]>>(j-1)) ; 
//}
//bool goTo ( int x ) 
//{
//	if ( adj [cur][x] == true ) 
//	{
//		cur = x ; 
//		return true ; 
//	}
//}

vi adjList [maxn] ; 
int par [maxn] ; 
int euler [maxn] , timeDfs ; 

void dfs ( int u , int dfs_par = 0 ) 
{
	par [u] = dfs_par ; 
	euler [timeDfs++] = u ; 
	for ( auto v : adjList [u] ) 
	{
		if ( v != dfs_par ) 
		{
			dfs (v,u) ; 
		}
	}	
}

void setInterger ( int node , int id , int value ) 
{
	int offset = id*10+1 ; 
	for ( int b = 0 ; b < 10 ; b ++ ) 
	{
		if ( value>>b&1 ) setHint (node,offset+b,true) ; 
	}
}

void assignHints ( int subtask , int n , vi A , vi B ) 
{
	setHintLen (20) ; 
	for ( int i = 1 ; i <= n-1 ; i ++ ) 
	{
		int u = A [i] , v = B [i] ; 
		adjList [u] . pb (v) , adjList [v] . pb (u) ; 
	}
	dfs (1) ; 
	for ( int i = 0 ; i < n ; i ++ ) 
	{
		setInterger (i+1,0,par[i+1]) ; 
		setInterger (euler[i],1,euler[(i+1)%n]) ; 
	}
}

int readInterger ( int id ) 
{
	int offset = id*10+1 ; 
	int value = 0 ; 
	for ( int b = 0 ; b < 10 ; b ++ ) 
	{
		value += (getHint(offset+b)<<b) ; 
	}
	return value ; 
}

void speedrun ( int subtask , int n , int start ) 
{
	int node = start ; 
	do {
		int target = readInterger (1) ; 
		while (!goTo(target)) 
		{
			node = readInterger (0) ; 
			goTo (node) ; 
		}
		node = target ; 
	} while ( node != start ) ; 
}

//int main () 
//{
//	ios_base::sync_with_stdio(0); 
//	cin.tie(0);cout.tie(0); 
////	rf () ;
//	
//}

Compilation message (stderr)

speedrun.cpp: In function 'void rf()':
speedrun.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) ;
      |  ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccstwriH.o: in function `main':
stub.cpp:(.text.startup+0x1d1): undefined reference to `assignHints(int, int, int*, int*)'
collect2: error: ld returned 1 exit status