Selection Sort Program in C using different function

Data Structure / Sorting

858

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Program:

#include <stdio.h>
#include <stdbool.h>
#define MAX 7

int intArray[MAX] = {4,6,3,2,1,9,7};

void printline(int count) {
   int i;
	
   for(i = 0;i <count-1;i++) {
      printf("=");
   }
	
   printf("=\n");
}

void display() {
   int i;
   printf("[");
	
   // navigate through all items 
   for(i = 0;i<MAX;i++) {
      printf("%d ", intArray[i]);
   }
	
   printf("]\n");
}

void selectionSort() {

   int indexMin,i,j,temp;
	
   // loop through all numbers 
   for(i = 0; i < MAX-1; i++) { 
	
      // set current element as minimum 
      indexMin = i;
		
      // check the element to be minimum 
      for(j = i+1;j<MAX;j++) {
         if(intArray[j] < intArray[indexMin]) {
            indexMin = j;
         }
      }

      if(indexMin != i) {
         printf("Items swapped: [ %d, %d ]\n" , intArray[i], intArray[indexMin]); 
			
         // swap the numbers 
         temp = intArray[indexMin];
         intArray[indexMin] = intArray[i];
         intArray[i] = temp;
      }          

      printf("Iteration %d#:",(i+1));
      display();
   }
}  

main() {
   printf("Input Array: ");
   display();
   printline(50);
   selectionSort();
   printf("Output Array: ");
   display();
   printline(50);
}

Output:

If we compile and run the above program, it will produce the following result ?

Input Array: [4 6 3 2 1 9 7 ]
==================================================
Items swapped: [ 4, 1 ]
Iteration 1#:[1 6 3 2 4 9 7 ]
Items swapped: [ 6, 2 ]
Iteration 2#:[1 2 3 6 4 9 7 ]
Iteration 3#:[1 2 3 6 4 9 7 ]
Items swapped: [ 6, 4 ]
Iteration 4#:[1 2 3 4 6 9 7 ]
Iteration 5#:[1 2 3 4 6 9 7 ]
Items swapped: [ 9, 7 ]
Iteration 6#:[1 2 3 4 6 7 9 ]
Output Array: [1 2 3 4 6 7 9 ]
==================================================
Press any key to continue . . .

Explanation:

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