3.2-Text-based histogram

解題心得:
簡單題。

程式碼:

#include <iostream>
using namespace std;

int main()
{
 const int SCALE = 6;
 int grade, studentGrades[SCALE] = { 0 };
 while (cin >> grade) // record inputs
 {
  studentGrades[grade]++;
 }
 for (int i = 0; i < SCALE; i++)
 {
  cout << studentGrades[i] << " grade(s) of " << i << endl;
 }
 return 0;
}