Question 8
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What is the output of the following C program?
#include <stdio.h>
int main(void) {
int m[4][5];
printf("%zu %zu %zu\n", sizeof m, sizeof m[0], sizeof m[0][0]);
return 0;
}- A 80 20 4 Correct
- B 20 5 4
- C 80 8 4
- D 80 20 8
Correct Answer: Option A
The whole matrix is 4 × 5 × 4 = 80 bytes. m[0] is one row of 5 ints = 20 bytes (an array, not a pointer, under sizeof), and one element is 4 bytes.
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