Question

How to use array of pointers in C

Answer 1

#include <stdio.h>
 
const int MAX = 4;
 
int main() {
    int arr[] = {4, 7, 9, 1};
    int *p[MAX];
 
    for (int i = 0; i < MAX; i++) {
        p[i] = &arr[i]; 
    }
   
    for (int i = 0; i < MAX; i++) {
         printf("%d\n", *p[i]);
    }
   
    *p[1] = 999;
   
    printf("\n");
    for (int i = 0; i < MAX; i++) {
         printf("%d\n", arr[i]);
    }
   
    return 0;
}




/*
run:

4
7
9
1

4
999
9
1

*/

 

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