Huawei Machine Test-Choose 2 people from 5 persons as etiquette

To choose 2 people from 5 persons as a courtesy, each of whom has a height range of 160-190, requiring a minimum height difference of 2 persons

(If the difference is the same, select the highest of the two) to output the height of two people in ascending order.

Sample input:161 189 167 172 188

Sample output:188 189

#include <stdio.h> #include <stdlib.h>int cmp (const void *a,const void *b) {    return * (int*) a-* (int*) b;} int main (int argc, char *argv[]) {    int a[5];    for (int i=0;i<5;++i)        scanf ("%d", &a[i]);    Qsort (a,5,sizeof (int), CMP);    int diff=30;    int index=0;    for (int i=0;i<4;++i)    {        if (A[i+1]-a[i]<=diff)        {            index=i;            Diff=a[i+1]-a[i];        }    }    printf ("%d%d\n", a[index],a[index+1]);    return 0;}

The test data is: 161 189 167 172 188

The result is:

Huawei Machine Test-Choose 2 people from 5 persons as etiquette