how long does arr[i] take c++ code example

Example 1: how to make an array c++

int foo [] = { 16, 2, 77, 40, 12071 };

Example 2: 1d fixed length arrays c++

void initarr(int arrgender[TOT_MALE][TOT_FEMALE])
  {
      for(int a =0; a < TOT_MALE;a++)
      {
          for(int b = 0; b < TOT_FEMALE;b++)
          {
              arrgender[a][b] = 0;
          }
      }