50 lines
1.9 KiB
C++
50 lines
1.9 KiB
C++
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// fig06_06.cpp
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// Printing a student grade distribution as a primitive bar chart.
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#include <format>
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#include <iostream>
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#include <array>
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int main() {
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constexpr std::array frequencies{0, 0, 0, 0, 0, 0, 1, 2, 4, 2, 1};
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std::cout << "Grade distribution:\n";
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// for each element of frequencies, output a bar of the chart
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for (int i{0}; const int& frequency : frequencies) {
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// output bar labels ("00-09:", ..., "90-99:", "100:")
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if (i < 10) {
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std::cout << std::format("{:03d}-{:03d}: ",
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i * 100, (i * 100) + 9);
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}
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else {
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std::cout << std::format("{:>7d}: ", 100);
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}
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++i;
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// print bar of asterisks
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for (int stars{0}; stars < frequency; ++stars) {
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std::cout << '*';
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}
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std::cout << '\n'; // start a new line of output
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}
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}
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/**************************************************************************
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* (C) Copyright 1992-2022 by Deitel & Associates, Inc. and *
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* Pearson Education, Inc. All Rights Reserved. *
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* *
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* DISCLAIMER: The authors and publisher of this book have used their *
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* best efforts in preparing the book. These efforts include the *
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* development, research, and testing of the theories and programs *
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* to determine their effectiveness. The authors and publisher make *
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* no warranty of any kind, expressed or implied, with regard to these *
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* programs or to the documentation contained in these books. The authors *
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* and publisher shall not be liable in any event for incidental or *
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* consequential damages in connection with, or arising out of, the *
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* furnishing, performance, or use of these programs. *
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**************************************************************************/
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