#include <iostream>
//Program Name: Chips and Salsa
//Developer: Elton Salanic
//Date: 10/8/21
//Program Description: This program allows the user to input the amount of sales
// for 5 different types of salsa. It then calculates the total
// sales as well as the worst and best seller!
#include <iostream>
#include <iomanip>
using namespace std;
int calculatetotalsales(int[]);
int findbestseller(int[]);
int findworstseller(int[]);
const int numofsalsa = 5; //contains number of salsa
int main()
{
 //ASKING USER FOR SALSA SALES:
 string salsa[5] = { "mild ", "medium", "sweet ", "hot ", "zesty " }; //array
that stores salsa types
 int sales[5]; //array that stores number of sales for each salsa
 for (int i = 0; i < numofsalsa; i++) //asks for salsa sales for each array
 {
 cout << "Jars sold last month of " << salsa[i] << " : ";
 cin >> sales[i];
 
 while (sales[i] < 0) //validates data to make sure it is 0 or greater
 {
 cout << "Jars sold must be 0 or greater! Try again: ";
 cin >> sales[i];
 }
 }
 //DISPLAYING DATA
 cout << "\n \n";
 cout << setw(25) << "Salsa Sales Report" << "\n" << endl;
 cout << "Name" << setw(30) << "Jars Sold" << endl;
 cout << "----------------------------------" << endl;
 
 for (int i = 0; i < numofsalsa; i++) //displays jars sold for each salsa
 {
 cout << salsa[i] << setw(24) << sales[i] << endl;
 }
 cout << "\n";
 //DISPLAYING TOTAL SALES
 int totalsales = calculatetotalsales(sales);
 cout << "Total Sales: " << setw(17) << totalsales << endl;
 
 //DISPLAYS HIGHEST SELLER
 int bestsellerindex = findbestseller(sales);
 cout << "Highest Seller: " << salsa[bestsellerindex] << endl;
 //DISPLAYS LOWEST SELLER
 int worstsellerindex = findworstseller(sales);
 
 
  cout << "Lowest Seller: " << salsa[worstsellerindex] << endl;
}
//CALCULATES TOTAL NUMBER OF SALES
int calculatetotalsales(int numberofsales[])
{
 int total = 0;
 for (int i = 0; i < numofsalsa; i++)
 {
 total += numberofsales[i];
 }
 return total;
}
//FINDS INDEX OF BEST SELLER
int findbestseller (int numberofsales[])
{
 int bestindex = 0; //stores index of best seller
 int bestseller = numberofsales[0]; //stores best seller to compare in array
 for (int i = 0; i < numofsalsa; i++) //cycles through the array to find the 
highest seller
 { //and saves the index of that seller
 if (bestseller < numberofsales[i + 1])
 {
 bestseller = numberofsales[i + 1];
 bestindex = i + 1;
 }
 }
 return bestindex;
}
//FINDS THE INDEX OF WORST SELLER
int findworstseller(int numberofsales[])
{
 int worstindex = 0; //stores index of worst seller
 int worstseller = numberofsales[0]; //stores worst seller to compare in array
 for (int i = 0; i < numofsalsa; i++)
 {
 if (worstseller > numberofsales[i + 1])
 {
 worstseller = numberofsales[i + 1];
 worstindex = i + 1;
 }
 }
 return worstindex;
}

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Read inputs from stdin

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#include <iostream>
#include <string>
using namespace std;

int main() 
{
    string name;
    cout << "Enter name:";
    getline (cin, name);
    cout << "Hello " << name;
    return 0;
}

About C++

C++ is a widely used middle-level programming language.

  • Supports different platforms like Windows, various Linux flavours, MacOS etc
  • C++ supports OOPS concepts like Inheritance, Polymorphism, Encapsulation and Abstraction.
  • Case-sensitive
  • C++ is a compiler based language
  • C++ supports structured programming language
  • C++ provides alot of inbuilt functions and also supports dynamic memory allocation.
  • Like C, C++ also allows you to play with memory using Pointers.

Syntax help

Loops

1. If-Else:

When ever you want to perform a set of operations based on a condition If-Else is used.

if(conditional-expression) {
   //code
}
else {
   //code
}

You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.

2. Switch:

Switch is an alternative to If-Else-If ladder.

switch(conditional-expression){    
case value1:    
 // code    
 break;  // optional  
case value2:    
 // code    
 break;  // optional  
......    
    
default:     
 code to be executed when all the above cases are not matched;    
}

3. For:

For loop is used to iterate a set of statements based on a condition.

for(Initialization; Condition; Increment/decrement){  
  //code  
}

4. While:

While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.

while (condition) {  
// code 
}

5. Do-While:

Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.

do {  
 // code 
} while (condition);

Functions

Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.

How to declare a Function:

return_type function_name(parameters);

How to call a Function:

function_name (parameters)

How to define a Function:

return_type function_name(parameters) {  
 // code
}