Question

How to get multiple random elements from an array in C

Answer 1

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main(void) {
    int arr[] = { 1, 12, 7, 26, 15, 21, 98, 6, 3, 18, 30, 80 };

    int size = sizeof(arr) / sizeof(arr[0]);

    srand(time(NULL));

    for (int i = 0; i < 5; i++) {
        printf("%d ", arr[(rand() % size)]); // random from 0 to size
    }

    return 0;
}



/*
run:

6 98 12 7 6

*/

 

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