Why 14, cant understand why [2][3] in here

Question

int a[2][3]={1,2,3,4,5};
int i=0,j=0;
for(i=0;i<2;i++)
cout<<a[i][j];

Answer 1

int a[2][3] = {1, 2, 3, 4, 5};

This initialised the multi-dimensional array as

{ {1, 2, 3}, {4, 5} }

We have i = 0 and j = 0 initially.
The for loop iterates such that the program will print a[0][0] and a[1][0].

a[0][0] refers to the first element of the first dimension, which is 1.

a[1][0] refers to the first element of the second dimension, which is 4.

// outputs 14

Answer 2

Think of cookies, e.g.

When we do int a[2][3], we have two packets, and each packet has 3 cookies

🍪🍪🍪 <- packet 0

🍪🍪🍪 <- packet 1

When we say a[0][0], we refer to the first cookie in packet 0.

When we say a[1][0], we refer to the first cookie in packet 1.

Answer 3

[2][3] is more like

{ {x,x,x}, {x,x,x} }

It consists of 6 slots in total, but only five are initialized according to the question, so the last element may contain undefined values.

Answer 4

ohh thanks, i cant understand cause of 2/3, i cant understand clearly why

Answer 5

yeah, so if 2/3, thats like {{x,x},{x,x},{x,x}}

Answer 6

so 6 numbers, but not 5

Answer 7

so thats why i cant understand this task