Submission #947021

#	Time	Username	Problem	Language	Result	Execution time	Memory
947021		thunopro	Floppy (RMI20_floppy)	C++14	Compilation error	0 ms	0 KiB

floppy

#include<bits/stdc++.h>
using namespace std ; 
#define maxn 200009 
#define ll long long 
#define fi first 
#define se second 
#define pb push_back 
#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()
#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;  
typedef vector<ll> vl;

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 ; }

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

#include "floppy.h" 

void read_array ( int subtask_id , vi &v ) 
{
	vi q ; 
	string bits = "" ; 
	for ( auto x : v ) 
	{
		while ( !q.empty() && q.back() < x ) 
		{
			q . pop_back() ; 
			bits += '0' ; 
		}
		q . pb (x) ; 
		bits += '1' ; 
	}
	save_to_floppy (bits) ; 
}

vi solve_queries ( int subtask_id , int n , string &bits , vi &a , vi &b )
{
	int m = a.size () ; 
	vector<vector<int>> queries (n) ; 
	for ( int i = 0 ; i < m ; i ++ ) 
	{
		queries [b[i]] . pb (i) ; 
	}
	int idx = -1 ; 
	vi q , res (m) ; 
	for ( char b : bits ) 
	{
		if ( b == '1' ) 
		{
			q . pb (++idx) ; 
			for ( auto i : queries [idx] ) 
			{
				res [i] = *lower_bound (q.begin(),q.end(),a[i]) ; 
			}
		}
		else q.pop_back() ; 
	}
	return res ; 
}

Compilation message (stderr)

floppy.cpp: In function 'void rf()':
floppy.cpp:42:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |  freopen ("bai1.inp","r",stdin) ;
      |  ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
stub.cpp: In function 'void run2()':
stub.cpp:101:30: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  101 |     if (query_answers.size() != M) {
      |         ~~~~~~~~~~~~~~~~~~~~~^~~~
/usr/bin/ld: /tmp/ccVokSKt.o: in function `run2()':
stub.cpp:(.text+0x698): undefined reference to `solve_queries(int, int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<int, std::allocator<int> > const&, std::vector<int, std::allocator<int> > const&)'
/usr/bin/ld: /tmp/ccVokSKt.o: in function `run1()':
stub.cpp:(.text+0xb1d): undefined reference to `read_array(int, std::vector<int, std::allocator<int> > const&)'
collect2: error: ld returned 1 exit status