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 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++)
{
for (j=0; j<i; j++)
{
if (arr1[i] == arr1[j])
break;
}
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:

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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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C Programming: Tips of the Day
C Programming - What is the argument for printf that formats a long?
Put an l (lowercased letter L) directly before the specifier.
unsigned long n; long m; printf("%lu %ld", n, m);
Ref : https://bit.ly/3dIwfkP
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