Submission #933214

#	Time	Username	Problem	Language	Result	Execution time	Memory
933214		thunopro	Vision Program (IOI19_vision)	C++14	0 / 100	2 ms	984 KiB

vision

#include<bits/stdc++.h>
#include "vision.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
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) ;
}

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 ; 
}

//void construct_network ( int H , int W , int K ) ; 
//bool NOT ( int cell ) ; 
//bool AND ( vi cell ) ; 
//bool OR ( vi cell ) ; 
//bool XOR ( vi cell ) ; 
// 
//int main () 
//{
//	ios_base::sync_with_stdio(0); 
//	cin.tie(0);cout.tie(0); 
////	rf () ; 
//	construct_network ( 2 , 3 , 3 ) ; 
//}
//
//bool NOT ( int cell ) 
//{ 
//	if ( cell == 0 || cell == 5 ) return 0 ;  
//	return 1 ; 
//}
//bool AND ( vi cell ) 
//{
//	int x ; cin >> x ; 
//	return x ; 
//}
//bool OR ( vi cell ) 
//{
//	int x ; cin >> x ; 
//	return x ; 
//}
//bool XOR ( vi cell ) 
//{
//	int x ; cin >> x ; 
//	return x ; 
//}

int h , w , k ; 
pii get_cell ( int cell ) 
{
	return {cell/w,cell%w} ; 
}
void construct_network ( int H , int W , int K ) 
{
	h = H , w = W , k = K ; 
	pii fir = {-1,0} , sec = {0,0} ; int pos ; 
	for ( int i = 0 ; i < h*w ; i ++ ) 
	{
		if ( add_not (i) == 0 && fir.fi == -1 ) fir = get_cell (i) , pos = i ; 
		else if ( add_not (i) == 0 ) sec = get_cell (i) ;  
	}
	int res ; 
	if ( abs(fir.fi-sec.fi) + abs(fir.se-sec.se) == k ) res = (add_not(pos)==0) ; 
	else res = add_not(pos) ; 
}

Compilation message (stderr)

vision.cpp: In function 'void construct_network(int, int, int)':
vision.cpp:92:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
   92 |  int res ;
      |      ^~~
vision.cpp: In function 'void rf()':
vision.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) ;
      |  ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
vision.cpp: In function 'void construct_network(int, int, int)':
vision.cpp:94:20: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized]
   94 |  else res = add_not(pos) ;
      |             ~~~~~~~^~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 11
• Subtask 3: 0 / 11
• Subtask 4: 0 / 15
• Subtask 5: 0 / 12
• Subtask 6: 0 / 8
• Subtask 7: 0 / 14
• Subtask 8: 0 / 19