5.5

#define  _CRT_SECURE_NO_WARNINGS #include<iostream>using namespace std;int main(){const int Months = 12;const char* Month[Months] ={"January","February","Match","April","May","June","July","August","September","October","November","December"};int sales_volume[Months];int sum = 0;for (int i = 0; i < Months; i++){cout << "Enter the sales volume in " << Month[i] << ':';cin >> sales_volume[i];sum += sales_volume[i];}cout << "This year out whole sales volume is " << sum << endl;return 0;}