Count Frequency of Each Element in an Array

List Topics
October 4, 2025
No Comments
2 min read

Count Frequency of Each Element in an Array

āϝāĻž āĻļāĻŋāĻ–āĻŦā§‹:

  • āϕ⧀āĻ­āĻžāĻŦ⧇ āĻāĻ•āϟāĻŋ array-āĻāϰ āĻĒā§āϰāϤāĻŋāϟāĻŋ element āĻ•āϤāĻŦāĻžāϰ āφāϛ⧇ āϤāĻž āĻŦ⧇āϰ āĻ•āϰāϤ⧇ āĻšāϝāĻŧ
  • Nested loop āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰ⧇ frequency count āĻ•āϰāĻž
  • āĻāĻ•āχ element āϝ⧇āύ āĻŦāĻžāϰāĻŦāĻžāϰ āύāĻž āĻ—ā§‹āύāĻž āĻšāϝāĻŧ āϏ⧇āχ āĻŦā§āϝāĻŦāĻ¸ā§āĻĨāĻž āĻ•āϰāĻž
  • āφāϰ⧇āĻ•āϟāĻŋ āϏāĻšāĻžāϝāĻŧāĻ• array āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž (visited āĻŦāĻž counted element āϰāĻžāĻ–āĻžāϰ āϜāĻ¨ā§āϝ)

āϧāĻžāĻĒ⧇ āϧāĻžāĻĒ⧇ āĻŦā§āϝāĻžāĻ–ā§āϝāĻž:

Step 1: āχāωāϜāĻžāϰ āĻĨ⧇āϕ⧇ array size āĻ“ elements āχāύāĻĒ⧁āϟ āύ⧇āĻ“āϝāĻŧāĻž

C
scanf("%d", &n);
for(i = 0; i < n; i++) {
    scanf("%d", &arr[i]);
}

Step 2: āĻĒā§āϰāϤāĻŋāϟāĻŋ element-āĻāϰ āϜāĻ¨ā§āϝ frequency count āĻ•āϰāĻž

C
for(i = 0; i < n; i++) {
    if(visited[i] == 1)
        continue;

    count = 1;
    for(j = i + 1; j < n; j++) {
        if(arr[i] == arr[j]) {
            count++;
            visited[j] = 1; // same element āĻĒ⧁āύāϰāĻžāϝāĻŧ āĻ—ā§‹āύāĻž āĻšāĻŦ⧇ āύāĻž
        }
    }

    printf("%d occurs %d times\n", arr[i], count);
}

āωāĻĻāĻžāĻšāϰāĻŖ:

C
#include <stdio.h>

int main() {
    int arr[100], visited[100] = {0};
    int n, i, j, count;

    printf("Enter the number of elements: ");
    scanf("%d", &n);

    printf("Enter %d elements:\n", n);
    for(i = 0; i < n; i++) {
        scanf("%d", &arr[i]);
    }

    printf("\nFrequency of each element:\n");
    for(i = 0; i < n; i++) {
        if(visited[i] == 1)
            continue;

        count = 1;
        for(j = i + 1; j < n; j++) {
            if(arr[i] == arr[j]) {
                count++;
                visited[j] = 1;
            }
        }

        printf("%d occurs %d times\n", arr[i], count);
    }

    return 0;
}

āφāωāϟāĻĒ⧁āϟ āωāĻĻāĻžāĻšāϰāĻŖ:

āωāĻĻāĻžāĻšāϰāĻŖ ā§§:

C
Enter the number of elements: 7
Enter 7 elements:
1 2 2 3 1 4 2

Frequency of each element:
1 occurs 2 times
2 occurs 3 times
3 occurs 1 times
4 occurs 1 times

āωāĻĻāĻžāĻšāϰāĻŖ ⧍:

C
Enter the number of elements: 5
Enter 5 elements:
5 5 5 5 5

Frequency of each element:
5 occurs 5 times

āĻŦā§āϝāĻžāĻ–ā§āϝāĻž:

  • āĻĒā§āϰāĻĨāĻŽā§‡ āχāωāϜāĻžāϰ⧇āϰ āĻ•āĻžāĻ› āĻĨ⧇āϕ⧇ array elements āύ⧇āĻ“āϝāĻŧāĻž āĻšāϝāĻŧ
  • āϤāĻžāϰāĻĒāϰ outer loop āĻĻāĻŋāϝāĻŧ⧇ āĻĒā§āϰāϤāĻŋāϟāĻŋ element āύ⧇āĻ“āϝāĻŧāĻž āĻšāϝāĻŧ
  • inner loop āĻĻāĻŋāϝāĻŧ⧇ āĻĻ⧇āĻ–āĻž āĻšāϝāĻŧ, āϏ⧇āχ element āĻāϰ āĻŽāϤ⧋ āφāϰ āĻ•āϝāĻŧāϟāĻž āφāϛ⧇
  • āĻāĻ•āĻŦāĻžāϰ count āĻšāϝāĻŧ⧇ āϗ⧇āϞ⧇ visited[j] = 1 āĻ•āϰ⧇ āĻĻ⧇āĻ“āϝāĻŧāĻž āĻšāϝāĻŧ āϝ⧇āύ āĻĒ⧁āύāϰāĻžāϝāĻŧ āĻ—āĻŖāύāĻž āύāĻž āĻšāϝāĻŧ
  • āĻļ⧇āώ⧇ āĻĒā§āϰāϤāĻŋāϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻžāϰ frequency āĻĒā§āϰāĻŋāĻ¨ā§āϟ āĻšāϝāĻŧ

Š2025 Linux Bangla | Developed & Maintaind by Linux Bangla.