#include <bits/stdc++.h>
using namespace std;

typedef long long ll; 
typedef long double ld; 
typedef unsigned long long ull;

#define FOR(i, a, b) for (auto i = a; i < b; i++)
#define FORD(i, a, b) for (auto i = a; i > b; i--)
#define FORN(i, a, b) for (auto i = a; i <= b; i++)
#define FORDN(i, a, b) for (auto i = a; i >= b; i--)

#define mp make_pair
#define mt make_tuple
#define fi first 
#define se second

#define fr front()
#define bk back()
#define pf push_front
#define pb push_back
#define pof pop_front
#define pob pop_back

int INF = 1e9;

//custom comparator
bool sort_jumlah(pair<char,ld> a, pair<char,ld> b){
		return a.second < b.second;
}

int minOperations(ll x, ll y) {
 
    // If both are equal then return 0
    if (x == y)
        return 0;
 
    // Check if conversion is possible or not
    if (x <= 0 && y > 0)
        return -1;
 
    // If x > y then we can just increase y by 1
    // Therefore return the number of increments required
    if (x < y)
        return y - x;
 
    if (y & 1)
        return 1 + minOperations(x, y - 1);
 
    // If y is even then divide it by 2 to make it closer to
    // x
    else
        return 1 + minOperations(x, y * 2);
}

int main()
{
	ll n,k,w,min = 1000000000000000, numOfOp;
	cin >> n >> k;
	vector<ll> permintaan;
	
	for(int i=0;i<n;i++){
	  cin >> w;
	  permintaan.pb(w);
	}
	
	/*sort(permintaan.begin(), permintaan.end());
	
	if(permintaan[0] >= k){
	  cout << permintaan[0] - k;
	}
	else{
	  for(int i=0;i<n;i++){
	    numOfOp = minOperations(k, permintaan[i]);
	    if(numOfOp < min) min = numOfOp;
	  }
	  
	  cout << min;
	}*/
	
	for(int i=0;i<n;i++){
	    numOfOp = minOperations(k, permintaan[i]);
	    if(numOfOp < min) min = numOfOp;
	 }
	 cout << min;
	return 0;
}

C++ Online Compiler

Write, Run & Share C++ code online using OneCompiler's C++ online compiler for free. It's one of the robust, feature-rich online compilers for C++ language, running on the latest version 17. Getting started with the OneCompiler's C++ compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C++ and start coding!

Read inputs from stdin

OneCompiler's C++ online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.

#include <iostream>
#include <string>
using namespace std;

int main() 
{
    string name;
    cout << "Enter name:";
    getline (cin, name);
    cout << "Hello " << name;
    return 0;
}

About C++

C++ is a widely used middle-level programming language.

  • Supports different platforms like Windows, various Linux flavours, MacOS etc
  • C++ supports OOPS concepts like Inheritance, Polymorphism, Encapsulation and Abstraction.
  • Case-sensitive
  • C++ is a compiler based language
  • C++ supports structured programming language
  • C++ provides alot of inbuilt functions and also supports dynamic memory allocation.
  • Like C, C++ also allows you to play with memory using Pointers.

Syntax help

Loops

1. If-Else:

When ever you want to perform a set of operations based on a condition If-Else is used.

if(conditional-expression) {
   //code
}
else {
   //code
}

You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.

2. Switch:

Switch is an alternative to If-Else-If ladder.

switch(conditional-expression){    
case value1:    
 // code    
 break;  // optional  
case value2:    
 // code    
 break;  // optional  
......    
    
default:     
 code to be executed when all the above cases are not matched;    
}

3. For:

For loop is used to iterate a set of statements based on a condition.

for(Initialization; Condition; Increment/decrement){  
  //code  
}

4. While:

While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.

while (condition) {  
// code 
}

5. Do-While:

Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.

do {  
 // code 
} while (condition);

Functions

Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.

How to declare a Function:

return_type function_name(parameters);

How to call a Function:

function_name (parameters)

How to define a Function:

return_type function_name(parameters) {  
 // code
}