decimal to binary gfg

1
2// C++ program to convert a decimal 
3// number to binary number 
4  
5#include <iostream> 
6using namespace std; 
7  
8// function to convert decimal to binary 
9void decToBinary(int n) 
10{ 
11    // array to store binary number 
12    int binaryNum[32]; 
13  
14    // counter for binary array 
15    int i = 0; 
16    while (n > 0) { 
17  
18        // storing remainder in binary array 
19        binaryNum[i] = n % 2; 
20        n = n / 2; 
21        i++; 
22    } 
23  
24    // printing binary array in reverse order 
25    for (int j = i - 1; j >= 0; j--) 
26        cout << binaryNum[j]; 
27} 
28  
29// Driver program to test above function 
30int main() 
31{ 
32    int n = 17; 
33    decToBinary(n); 
34    return 0; 
35} 

1#include <iostream>
2#include <stdlib.h>
3
4int main ()
5{
6    int i;
7    char buffer [33];
8    printf ("Enter a number: ");
9    scanf ("%d",&i);
10    itoa (i,buffer,10);
11    printf ("decimal: %s\n",buffer);
12    itoa (i,buffer,16);
13    printf ("hexadecimal: %s\n",buffer);
14    itoa (i,buffer,2);
15    printf ("binary: %s\n",buffer);
16    return 0;
17}
18

1# Python program to convert decimal to binary
2   
3# Function to convert Decimal number
4# to Binary number
5def decimalToBinary(n):
6    return bin(n).replace("0b", "")
7   
8# Driver code
9if __name__ == '__main__':
10    print(decimalToBinary(8))
11    print(decimalToBinary(18))
12    print(decimalToBinary(7))
13

1  std::string binary = std::bitset<8>(n).to_string();
2

1//Java Solution for Decimal To Binary Conversion
2
3import java.util.*;
4public class DecimalToBinary {
5
6	public static void main(String[] args) {
7		// TODO Auto-generated method stub
8		Scanner sc = new Scanner(System.in);
9		int dec = sc.nextInt();
10		StringBuffer sb = new StringBuffer();
11		while(dec!=0)
12		{
13			sb.append(dec%2);
14			dec=dec/2;
15		}
16		System.out.println(sb.reverse());
17		
18	}
19
20}
21

1# Function to convert decimal to binary
2# using built-in python function
3def decimalToBinary(n):
4    # converting decimal to binary
5    # and removing the prefix(0b)
6    return bin(n).replace("0b", "")
7   
8# Driver code
9if __name__ == '__main__':
10    # calling function
11    # with decimal argument
12    print(decimalToBinary(77))