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Use the system quick sort

#include <stdio.h> #include <stdlib.h> int comp(const void *x, const void *j); int main(void) { int sort[100], x; /* set the array with random numer*/ for(x = 0; x < 100; x++) sort[x] = rand(); /* call the quick sort */ qsort(sort, 100, sizeof(int), comp); for(x = 0; x < 100; x++) printf("%d\n", sort[ x ]); return 0; } int comp(const void *x, const void *j) { return *(int*)x - *(int*)j; }