Plus Minus in C++ Program

Plus minus in C++ programming language.

In this article, you will learn how to make a plus-minus in C++ programming language.

Example

You should have knowledge of the following topics in c++ programming to understand these programs:

• C++ main() function
• C++ while loop

Source Code

// Plus Minus in C++ Program
#include <iostream>
#include <iomanip>
using namespace std;

int main() {
    int s=0;
    cout << "Enter the size of the array::\n";
    cin >> s;
    
    float arr[s];
    cout << "Enter the " << s << " elements of the array::\n";
    
    // It will read the inputs of the array's elements + calculate the plus-minus values
    int i=0;
    float r1=0,r2=0,r3=0;
    while (i<s) {
        cin >> arr[i];
        
        if (arr[i] > 0) r1++;
        if (arr[i] < 0) r2++;
        if (arr[i] == 0) r3++;
        i++;
    }
    r1 = r1/s;
    r2 = r2/s;
    r3 = r3/s;
    
    // It will print the final output
    cout << fixed << setprecision(6) << "\n\n" << r1 << endl << r2 << endl << r3 << endl;
    return 0;
}

Run

Output

Explanation

In this given program we have taken the inputs size of the array 8 and the array's elements 4, 1, -4, -5, 3, -9, 0, -9. Then we applied the standard formula to calculate the plus-minus values of the given inputs.

After the whole calculation above program will return the 0.375000, 0.500000, 0.125000 output of the program.