Replace all ‘0’ with ‘5’ in an input Integer

Given a integer as a input and replace all the ‘0’ with ‘5’ in the integer.
Examples:

102 - 152
1020 - 1525

Use of array to store all digits is not allowed.

Recommended: Please solve it on “PRACTICE” first, before moving on to the solution.

The idea is simple, we get the last digit using mod operator ‘%’. If the digit is 0, we replace it with 5, otherwise keep it as it is. Then we recur for remaining digits.

Following is the implementation of the above idea.

C++

 // C++ program to replace all ‘0’ // with ‘5’ in an input Integer #include using namespace std;    // A recursive function to replace all 0s // with 5s in an input number It doesn't  // work if input number itself is 0. int convert0To5Rec(int num) {     // Base case for recursion termination     if (num == 0)         return 0;        // Extraxt the last digit and      // change it if needed     int digit = num % 10;     if (digit == 0)         digit = 5;        // Convert remaining digits and      // append the last digit     return convert0To5Rec(num/10) *                         10 + digit; }    // It handles 0 and calls convert0To5Rec()  // for other numbers int convert0To5(int num) {     if (num == 0)     return 5;     else return convert0To5Rec(num); }    // Driver code int main() {     int num = 10120;     cout << convert0To5(num);     return 0; }    // This code is contributed by Code_Mech.

C

 // C program to replace all ‘0’ with ‘5’ in an input Integer #include    // A recursive function to replace all 0s with 5s in an input number // It doesn't work if input number itself is 0. int convert0To5Rec(int num) {     // Base case for recursion termination     if (num == 0)         return 0;        // Extraxt the last digit and change it if needed     int digit = num % 10;     if (digit == 0)         digit = 5;        // Convert remaining digits and append the last digit     return convert0To5Rec(num/10) * 10 + digit; }    // It handles 0 and calls convert0To5Rec() for other numbers int convert0To5(int num) {     if (num == 0)        return 5;     else return  convert0To5Rec(num); }    // Driver program to test above function int main() {     int num = 10120;     printf("%d", convert0To5(num));     return 0; }

Java

 // Java code for Replace all 0 with 5 in an input Integer class GFG {            // A recursive function to replace all 0s with 5s in      // an input number. It doesn't work if input number      // itself is 0.     static int convert0To5Rec(int num)     {         // Base case         if (num == 0)             return 0;                    // Extraxt the last digit and change it if needed         int digit = num % 10;          if (digit == 0)             digit = 5;            // Convert remaining digits and append the          // last digit         return convert0To5Rec(num / 10) * 10 + digit;     }        // It handles 0 and calls convert0To5Rec() for     // other numbers     static int convert0To5(int num)     {         if (num == 0)             return 5;         else             return convert0To5Rec(num);     }        // Driver function     public static void main(String[] args)     {         System.out.println(convert0To5(10120));     } }    // This code is contributed by Kamal Rawal

Python

 # Python program to replace all 0 with 5 in given integer    # A recursive function to replace all 0s with 5s in an integer # Does'nt work if the given number is 0 itself def convert0to5rec(num):        # Base case for recurssion termination     if num == 0:         return 0        # Extract the last digit and change it if needed     digit = num % 10        if digit == 0:         digit = 5        # Convert remaining digits and append the last digit     return convert0to5rec(num/10) * 10 + digit    # It handles 0 to 5 calls convert0to5rec() for other numbers def convert0to5(num):     if num == 0:         return 5     else:         return convert0to5rec(num)       # Driver Program num = 10120 print convert0to5(num)    # Contributed by Harshit Agrawal

C#

 // C# code for Replace all 0  // with 5 in an input Integer  using System;    class GFG  {     // A recursive function to replace  // all 0s with 5s in an input number. // It doesn't work if input number  // itself is 0.  static int convert0To5Rec(int num)  {      // Base case      if (num == 0)          return 0;             // Extraxt the last digit and     // change it if needed      int digit = num % 10;      if (digit == 0)          digit = 5;         // Convert remaining digits      // and append the last digit      return convert0To5Rec(num / 10) * 10 + digit;  }     // It handles 0 and calls  // convert0To5Rec() for other numbers  static int convert0To5(int num)  {      if (num == 0)          return 5;      else         return convert0To5Rec(num);  }     // Driver Code  static public void Main () {     Console.Write(convert0To5(10120));  }  }     // This code is contributed by Raj

PHP



Output:

15125

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Improved By : R_Raj, Mithun Kumar, Code_Mech

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