Use a vector of integers to track value range - C++ STL

C++ examples for STL:vector

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Description

Use a vector of integers to track value range

Demo Code

#include <iostream>
#include <vector>

const size_t salaryRange = 9;

int main(int argc, const char *argv[]) {
    std::vector<int> arrSalaries(salaryRange);

    int choice = 0;

    while (choice != -1) {
        std::cout << "Enter salary (-1 to quit): ";
        std::cin >> choice;/*from w  ww  . j a  v  a 2  s . c  o m*/

        if (choice == -1)
            break;
        else if (choice > 999)
            ++arrSalaries[8];
        else if (choice > 899)
            ++arrSalaries[7];
        else if (choice > 799)
            ++arrSalaries[6];
        else if (choice > 699)
            ++arrSalaries[5];
        else if (choice > 599)
            ++arrSalaries[4];
        else if (choice > 499)
            ++arrSalaries[3];
        else if (choice > 399)
            ++arrSalaries[2];
        else if (choice > 299)
            ++arrSalaries[1];
        else if (choice >= 200)
            ++arrSalaries[0];
    }

    // show results
    for (unsigned int i = 0; i < salaryRange; ++i) {
        if (i != salaryRange - 1) {
            std::cout << "$" << i + 2 << "00-" << i + 2
                      << "99: " << arrSalaries[i] << std::endl;
        } else {
            std::cout << "$1000+:   " << arrSalaries[i] << std::endl;
        }
    }

    return 0;
}

Result


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