C Exercises: Print all unique elements of an unsorted array
C Array: Exercise-73 with Solution
Write a program in C to print all unique elements of an unsorted array.
Sample Solution:
C Code:
#include <stdio.h>
int main() {
int arr1[] = {1, 5, 8, 5, 7, 3, 2, 4, 1, 6, 2};
int n = sizeof(arr1) / sizeof(int);
int i, j;
// Print the original array
printf("The given array is : ");
for (i = 0; i < n; i++) {
printf("%d ", arr1[i]);
}
printf("\n");
printf("Unique Elements in the given array are: \n");
for (i = 0; i < n; i++) {
// Iterate through the array to find unique elements
for (j = 0; j < i; j++) {
// If a duplicate is found, break the loop
if (arr1[i] == arr1[j])
break;
}
// If 'i' reaches 'j', the current element is unique, hence print it
if (i == j) {
printf("%d ", arr1[i]);
}
}
return 0;
}
Sample Output:
The given array is : 1 5 8 5 7 3 2 4 1 6 2 Unique Elements in the given array are: 1 5 8 7 3 2 4 6
Flowchart:

C Programming Code Editor:
Previous: Write a program in C to return only the unique rows from a given binary matrix.
Next: Write a program in C to find the sum of upper triangular elements of a matrix.
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