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Print sorted distinct elements of array in C language
Given with an array of integer elements, the task is to remove the duplicate values and print the distinct elements in sorted manner.
Given below is an array that stores integer type values in the fashion 4, 6, 5, 3, 4, 5, 2, 8, 7 and 0 now, the result will print the sorted elements as 0, 2, 3, 4, 4, 5, 5, 6, 7 and 8 but this result still contains duplicate values 4 and 5 which should be removed and the final result will be 0, 2, 3, 4, 5, 6, 7 and 8
Example
Input: array[] = {4, 6, 5, 3, 4, 5, 2, 8, 7, 0} Output: 0 2 3 4 5 6 7 8
Explanation
So, to achieve the result we will
- Take the distinct elements and store it in another array, array1.
- Sort the array1.
- Print the values of array1.
Algorithm
START STEP 1: DECLARE VARIABLES i, j, array1[size], temp, count = 0 STEP 2: LOOP FOR i = 0 AND i < size AND i++ LOOP FOR j = i+1 AND j < size AND j++ IF array[i] == array[j]) then, break END IF END FOR IF j == size then, ASSIGN array1[count++] WITH array[i] END IF END FOR STEP 3: LOOP FOR i = 0 AND i < count-1 AND i++ LOOP FOR j = i+1 AND j < count AND j++ IF array1[i]>array1[j] then, SWAP array1[i] AND array[j] END IF END FOR END FOR STEP 4: PRINT array1 STOP
Example
#include <stdio.h> /* Prints distinct elements of an array */ void printDistinctElements(int array[], int size) { int i, j, array1[size], temp, count = 0; for(i = 0; i < size; i++) { for(j = i+1; j < size; j++) { if(array[i] == array[j]) { /* Duplicate element found */ break; } } /* If j is equal to size, it means we traversed whole array and didn't found a duplicate of array[i] */ if(j == size) { array1[count++] = array[i]; } } //sorting the array1 where only the distinct values are stored for ( i = 0; i < count-1; i++) { for ( j = i+1; j < count; j++) { if(array1[i]>array1[j]) { temp = array1[i]; array1[i] = array1[j]; array1[j] = temp; } } } for ( i = 0; i < count; ++i) { printf("%d ", array1[i]); } } int main() { int array[] = {4, 6, 5, 3, 4, 5, 2, 8, 7, 0}; int n = sizeof(array)/sizeof(array[0]); printDistinctElements(array, n); return 0; }
Output
If we run above program then it will generate following output.
0 2 3 4 5 6 7 8
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