Qsort test examples for each data type

It's very rewarding.

Qsort demo#include <iostream> #include <cstdlib>//qsort #include <cstring>using namespace Std;int Cmp_int (const void *a,const void *b) {return * (int *) A-* (int *) b;} int Cmp_char (const void *a,const void *b) {return * (char *) A-* (char *) b;} int cmp_string (const void *a,const void *b) {return strcmp ((char*) A, (char *) b);} struct Node {int x, y;}; int Cmp_struct1 (const void *a,const void *b)//The struct-level sort (sorted by a keyword in the struct) {return (* (node*) a). x > (* (node*) b). x 1:-1;} int cmp_struct2 (const void *a,const void *b)//Structure two-level sort (by X from small to large, {//when x equals y from large to small compared) struct Node *c = (Node *) a;struct Nod E *d = (Node *) b;if (c->x!=d->x) return C->x-d->x;elsereturn c->y-d->y;} int main () {//Test qsort int Arr[6] = {5,3,12,8,1,9};qsort (arr,6,sizeof (int), cmp_int); for (int i=0;i<6;i++) {cout <<arr[i]<< "";} cout<<endl;//Test Qsort Char is ordered char ch[6] = {' V ', ' a ', ' w ', ' K ', ' Z ', ' C '};qsort (ch,6,sizeof (char), Cmp_char); for ( int i=0;i<6;i++) {cout<<ch[i]<< "";} cout<<endl;//Test Qsort The string sort char str[100][10]= {"abc", "CDF", "ckg", "MVC", "Java", "Oracle"};qsort (str,6,sizeof ( Str[0]), cmp_string); for (int i=0;i<6;i++) {cout<<str[i]<< "";} cout<<endl;  Test Qsort A first-level sort of struct (in order of size in x fields) struct Node node[100] ={{12,15},{30,25}, {20,8},{28,10},{35,5}, {30,10}}; Qsort (Node,6,sizeof (node[0]), cmp_struct1);   for (int i=0;i<6;i++) {cout<<node[i].x<< "" <<node[i].y<< "\ T";} cout<<endl;  Test Qsort Two-level sort of struct Node node2[100] ={{12,15},{30,25},{20,16},{20,10},{35,5}, {30,10},{32,6},{35,50}}; Qsort (Node2,8,sizeof (node2[0]), cmp_struct2); for (int i=0;i<8;i++) {cout<<node2[i].x<< "" <<node2[i].y<< "\ T";} cout<<endl; return 0;}

Qsort test examples for each data type