# Homework Solution: Consider the following C code fragment:…

Consider the following C code fragment: int arr[20][30]; int &arr[3][29]: The expression *(ptr + 4) is equivalent to arr[ ? ][ ? ]. Use values that are within the range of their corresponding dimensions in the declaration of the array.

## Expert Answer

#include <stdio.h>

Consider the subjoined C adjudication fragment:

int arr[20][30];

int &arr[3][29]:

The indication *(ptr + 4) is equiponderant to arr[ ? ][ ? ].

Use values that are among the place of their identical work in the assertion of the accoutre.

## Expert Acceptance

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

int ocean()
{
int arr[20][30];

printf(“Start of accoutre: %pn”, &arr);
printf(“pointer+4: %pn”, &arr+4);
printf(“pointer arr[0][4]: %pn”, &arr[0][4]);

void *mem1 = &arr+4;
void *mem2;

for (int i = 0; i < 1000; ++i) {
for (int j = 0; j < 1000; ++j) {
if (mem1 == &arr[i][j]) {
printf(“i = %i, j = %in”, i, j);
printf(“mem residuum 1 = %p, mem residuum 2 = %pn”, mem1, &arr[i][j]);
exit(0);
}
}
}

// The indication *(ptr + 4) is equiponderant to arr[ 47 ][ 990 ].

return 0;
}

Output:

acceptance if arr[47][990]