C++ Standard Output Displays sales chart, initializes 2-d array

#include <iostream>
#include <iomanip>             //for setprecision, etc.
using namespace std;
const int DISTRICTS = 4;       //array dimensions
const int MONTHS = 3;
int main()//w w w .ja  v  a 2  s. c  o m
{
   int d, m;
   //initialize array elements
   double sales[DISTRICTS][MONTHS]
       = {  {  142.07,   34.50,   54.01 },
       {   32.00, 1338.32, 1789.88 },
       {  938.34,   34.00,  492.30 },
       { 1288.29,  232.63,   32.93 }  };
   cout << "\n\n";
   cout << "                        Month\n";
   cout << "                1         2         3";
   for(d=0; d<DISTRICTS; d++)
   {
      cout <<"\nDistrict " << d+1;
      for(m=0; m<MONTHS; m++)
         cout << setw(10) 
              << setiosflags(ios::fixed) 
              << setiosflags(ios::showpoint) 
              << setprecision(2) 
              << sales[d][m];  //access array element
   }
   cout << endl;
   return 0;
}