# Digit Frequency in C HackerRank Solution

Hello Friends in this article i am gone to share Hackerrank C programming Solutions with you. | Digit Frequency in C HackerRank Solution.

### Objective

Given a string, s, consisting of alphabets and digits, find the frequency of each digit in the given string.

### Input Format

The first line contains a string, num which is the given number.

### Constraints

*1 <= len(num) <= 1000*

All the elements of num are made of english alphabets and digits.

### Output Format

Print ten space-separated integers in a single line denoting the frequency of each digit from 0 to 9.

### Sample Input 0

`a11472o5t6`

### Sample Output 0

`0 2 1 0 1 1 1 1 0 0`

### Explanation 0

**In the given string:**

- 1 occurs two times.
- 2,4,5,6 and 7 occur one time each.
- The remaining digits 0, 3, 8 and 9 don’t occur at all.

### Sample Input 1

`lw4n88j12n1`

### Sample Output 1

`0 2 1 0 1 0 0 0 2 0`

### Sample Input 2

`1v88886l256338ar0ekk`

### Sample Output 2

`1 1 1 2 0 1 2 0 5 0`

**Hackerrank C programming Solutions**

## Digit Frequency in C HackerRank Solution

#include <stdio.h> #include <string.h> #include <math.h> #include <stdlib.h> int main() { /* Enter your code here. Read input from STDIN. Print output to STDOUT */ char s; int i,a[] ={0,0,0,0,0,0,0,0,0,0}; while(scanf("%c", &s) == 1) if(s >= '0' && s <= '9') a[s-'0']+=1; for(i=0;i<10;i++) printf("%d ",a[i]); return 0; }

### What is frequency of digit in c?

Increment the frequency of a digit found above i.e. lastDigit . To increment frequency perform freq[lastDigit]++ . The value of lastDigit will be always between 0-9 inclusive. Hence it can be used as an index to freq array.

### What is a frequency of a digit?

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