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  1. #include <iostream>
  2. #include <string>
  3. #include <math.h>
  4. #include <iomanip>
  5. using namespace std;
  6.  
  7. // declare const variable for array size, and array prototypes
  8. const int SIZE = 20;
  9. void fill(int arr[SIZE]);
  10. void print(int arr[SIZE]);
  11. void printRanges(int arr[SIZE]);
  12.  
  13. int main() {
  14.  
  15.     // create an array with 20 components 
  16.     int arr[SIZE] = { 0 };
  17.  
  18.     // call functions
  19.     fill(arr);
  20.     print(arr);
  21.     printRanges(arr);
  22.  
  23.  
  24.  
  25.     // pause and exit
  26.     getchar();
  27.     getchar();
  28.     return 0;
  29. }
  30.  
  31. //fills array arr with 20 random numbers
  32. void fill(int arr[SIZE]) {
  33.     for (int i = 0; i < SIZE; i++) {
  34.         arr[i] = rand() % 100;
  35.     }
  36. }
  37.  
  38. // prints the array
  39. void print(int arr[SIZE]) {
  40.     for (int i = 0; i < SIZE; i++) {
  41.         cout << arr[i] << " ";
  42.     }
  43. }
  44.  
  45. // finds the range of each value in the array and stores it in the array ticker, then prints
  46. // a list from 00-90 documenting how many values are in each range
  47. void printRanges(int arr[SIZE]) {
  48.     int ticker[10] = { 0 };
  49.  
  50.     for (int i = 0; i < SIZE; i++) {
  51.         int index = arr[i] / 10;
  52.         if (index < 10) {
  53.             ticker[index] += 1;
  54.         }
  55.     }
  56.     cout << endl;
  57.     for (int i = 0; i < 10; i++) {
  58.         cout << setfill('0') << setw(2) << i << ": ";
  59.         cout << setfill('*') << setw(ticker[i]) << "" << endl;
  60.     }
  61. }
Success #stdin #stdout 0s 4508KB
comments (?)
stdin
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Standard input is empty
stdout
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83 86 77 15 93 35 86 92 49 21 62 27 90 59 63 26 40 26 72 36 
00: 
01: *
02: ****
03: **
04: **
05: *
06: **
07: **
08: ***
09: ***
https://ideone.com/hogmiF
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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