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C program to replace all zeros with one in a given integer.
Problem
Write a program to replace all zeros (0's) with 1 in a given integer.
Given an integer as an input, all the 0's in the number has to be replaced with 1.
Solution
Consider an example given below −
Here, the input is 102410 and the output is 112411.
Algorithm
Refer an algorithm given below to replace all the 0’s to 1 in an integer.
Step 1 − Input the integer from the user.
Step 2 − Traverse the integer digit by digit.
Step 3 − If a '0' is encountered, replace it by '1'.
Step 4 − Print the integer.
Example
Given below is the C program to replace all 0's with 1 in a given integer −
#include<stdio.h>
int replace(long int number){
if (number == 0)
return 0;
//check last digit and change it if needed
int digit = number % 10;
if (digit == 0)
digit = 1;
// Convert remaining digits and append to its last digit
return replace(number/10) * 10 + digit;
}
int Convert(long int number){
if (number == 0)
return 1;
else
return replace(number);
}
int main(){
long int number;
printf("
Enter any number : ");
scanf("%d", &number);
printf("
After replacement the number is : %dn", Convert(number));
return 0;
}Output
When the above program is executed, it produces the following output −
Enter any number: 1056110010 After replacement the number is: 1156111111
Updated on: 26-Mar-2021
2K+ Views
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