Selection Sort in C

  Machine Problem in C

Write a program to ask the user to give a series of numbers and then the program will sort the given numbers using selection sort algorithms.

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Program Listing

/* selection_sort.c

       

    Machine Problem in C

    

Write a program to ask the user to give a series of

numbers and then the program will sort the given 

numbers using selection sort algorithms.

    

    Jake R. Pomperada, MAED-IT, MIT

    www.jakerpomperada.com

    www.jakerpomperada.blogspot.com

    jakerpomperada@gmail.com

    Bacolod City, Negros Occidental, Philippines

*/ 

#include <stdio.h>

void selection_sort();

int i=0,a[100], num=0;

int main()

{

    

    printf("\n\n");

    printf("\tSelection Sort in C");

    printf("\n\n");

    printf("\tHow many items in the array? : ");

    scanf("%d", &num);

    printf("\n\n");

      for(i=0; i<num; i++) {

         printf("\tGive value in item no. %d : ",i+1);

   scanf("%d", &a[i]);

        }

    printf("\n\tBefore sorting:\n");

    printf("\n");

printf("\t");

    for(i=0; i<num; i++)

        printf(" %d ", a[i]);

    selection_sort();

    printf("\n");

    printf("\n\tAfter sorting:\n");

    printf("\n");

    printf("\t");  

for(i=0; i<num; i++)

        printf(" %d ", a[i]);

    getch();

}

void selection_sort()

{

    int i, j, min, temp;

    for (i=0; i<num; i++)

    {

        min = i;

        for (j=i+1; j<num; j++)

        {

            if (a[j] < a[min])

                min = j;

        }

        temp = a[i];

        a[i] = a[min];

        a[min] = temp;

    }

}