histogram-h2

Histogram - H2

This Kata is a variation of Histogram - H1

Background

A 6-sided die is rolled a number of times and the results are plotted as percentages in a character-based horizontal histogram.

Example:

6|██ 5%
5|
4|███████ 15%
3|███████████████████████████████████ 70%
2|█ 3%
1|███ 7%

Task

You will be passed the dice value frequencies, and your task is to write the code to return a string representing a histogram, so that when it is printed it has the same format as the example.

Notes

• There are no trailing spaces on the lines
• All lines (including the last) end with a newline \n
• The percentage is displayed beside each bar except where it is 0%
• The total number of rolls varies, but won't exceed 10,000
• The bar lengths are scaled so that 100% = 50 x bar characters
• The bar character is █, which is the Unicode U+2588 char
• When calculating percentages and bar lengths always floor/truncate to the nearest integer