Rand() function seeded srand(time(0)

I know how to make a bubble sort and the exchange sort but I do not know how to generate a small arrays of dimension 20, such that the entries are random positive integers less than 100. I am also not sure if I can combine the bubble, exchange and sort the random array of integers. Heres what I have so far:

Bubble Sort:

#include <stdio.h> main() { int numbers[10], i, j, k, tmp; printf("\nthe original numbers are:\n"); for (i=0; i<10; i=i+1) { numbers[i]=rand(); printf(" %d ", numbers[i]); } printf("\n\n"); for (i=0; i<10; i=i+1) { for (j=0; j<9; j=j+1) { if (numbers[j]<numbers[j+1]) { tmp=numbers[j]; numbers[j]=numbers[j+1] numbers[j+1]=tmp; } } } printf("the sorted numbers are:\n") for (i=0; i<10; i=i+1) { printf(" %d ", numbers[i]); } printf("\n\n"); } Exchange Sort: #include <stdio.h> main() { int numbers[10], i, j, k, tmp; printf("\nthe original numbers are:\n"); for (i=0; i<10; i=i+1) { numbers[i]=rand(); printf(" %d ", numbers[i]); } printf("\n\n"); for (i=0; i<9; i=i+1) { for (j=0; j<10; j=j+1) { if (numbers[i]<numbers[j]) { tmp=numbers[j]; numbers[j]=numbers[i] numbers[i]=tmp; } } } printf("the sorted numbers are:\n") for (i=0; i<10; i=i+1) printf(" %d ", numbers[i]); printf("\n\n"); return(0); }