Question

How to use malloc in C

Answer 1

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
  
int main () {
    int size = 10;
    int *p;
  
    p = (int*)malloc(size * sizeof(int));
    
    if (p == NULL) {
        return -1;
    }
  
    srand(time(NULL));
    for (int i = 0 ; i < size ; i++) {
        p[i] = (rand() % 100) + 1; // from 1 to 100
        printf("%d ", *(p + i)); // *(p + i) == p[i]
    }
  
    free(p);
     
    return 0;
}
   
   
   
   
/*
run:
   
64 33 26 92 62 99 42 35 92 61 
   
*/

 

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