Go4Expert - sort

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- - sort (http://www.go4expert.com/showthread.php?t=23780)

Complete the sorting of three numbers from small to big:

Code:

#include <stdio.h>

#include <stdlib.h>

void Exchg(int *px, int *py)

{

    int tmp;

    tmp = *px;

    *px = *py;

    *py = tmp;    

}

int main(int argc, char *argv[])

{

    int x,y,z,t;

    while(scanf("%d%d%d",&x,&y,&z))

    {

        if(x > y)

            Exchg(&x,&y);      /*change x,y*/

        if(x > z)

            Exchg(&x,&z);      /*change x,z*/

        if(y > z)

            Exchg(&y,&z);      /*change z,y*/

        printf("small to big: %d %d %d\n",x,y,z);

    }    

    system("PAUSE"); 

    return 0;

}

compile successfully in dev c++

You don't use variable t, while looks like an infinite loop, swapping is ok. If you want to sort a few numbers, you may use array or some ohter data structure and use some sorting algorithm.

Quote:

Originally Posted by wdliming (Post 74412)

Complete the sorting of three numbers from small to big:

Code:

#include <stdio.h>

#include <stdlib.h>

void Exchg(int *px, int *py)

{

    int tmp;

    tmp = *px;

    *px = *py;

    *py = tmp;    

}

int main(int argc, char *argv[])

{

    int x,y,z,t;

    while(scanf("%d%d%d",&x,&y,&z))

    {

        if(x > y)

            Exchg(&x,&y);      /*change x,y*/

        if(x > z)

            Exchg(&x,&z);      /*change x,z*/

        if(y > z)

            Exchg(&y,&z);      /*change z,y*/

        printf("small to big: %d %d %d\n",x,y,z);

    }    

    system("PAUSE"); 

    return 0;

}

compile successfully in dev c++

Thank you for your advices !!I get it!