WAP in C to read a positive integer,print its binary equivalent

The Program in C that reads a positive integer and determine and print its binary equivalent is given below:

``````#include <stdio.h>
#include <math.h>

void decimal_to_binary(int n) {
int binaryNum[32];
int i = 0;
while (n > 0) {
binaryNum[i] = n % 2;
n = n / 2;
i++;
}

printf("Binary equivalent of the decimal number is: ");
for (int j = i - 1; j >= 0; j--)
printf("%d", binaryNum[j]);
printf("\n");
}

int main() {
int decimal;
printf("Enter a positive integer: ");
scanf("%d", &decimal);

decimal_to_binary(decimal);

return 0;
}
``````

Output:

Enter a positive integer: 45
Binary equivalent of the decimal number is: 101101

Pro-Tips💡

This program prompts the user to enter a positive integer, then converts it to its binary equivalent using a function called `decimal_to_binary`.

The function uses a while loop to divide the decimal number by 2 and store the remainder in an array.

The function then prints the binary equivalent by iterating through the array in reverse order.

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