Homework 8. Complex tasks

08. Complex tasks
8.01. Tisho wants to play Bulls and Cows, but he is confused
by the rules, so he needs our help. We have to write a
program that reads two integer numbers A and B in the range
[0,9999] from the console and prints back the number of bulls
and cows for these numbers. Numbers smaller than 1000 we
should pad with zeros, for example 19 should be interpreted
as 0019.
8.02. Tisho really enjoyed our help and he needs us again.
Now he asked us to do the following: Given a number -
Tisho's suggestion for his opponent's number, - number of
bulls and - number of cows, we have to print every number
that has bulls and cows with the number .
8.03. Strahil and Pesho really love hamburgers and they have
a game which they play in rounds - they try to eat as much as
they can. And since it is very hard to overeat, they can't
remember how many burgers they ate, so they write the result
in a single number B with the following property: the sum of
the left digits of B gives the number of burgers Strahil ate,
and the sum of the right digits gives the number of burgers
Pesho ate. For example 3489 means that Strahil ate 3 + 4 = 7
and Pesho ate 8 + 9 = 17. If the number B has odd number of
digits, then the one in the middle is shared between them
both. For example 324 means 3 + 2 = 5 for Strahil and 2 + 4 =
6 for Pesho. The number B will never be more than 9 digits
long. Your task is to help them decide who is better and
print who won the game and how many burgers he ate. If they
have equal results, print that the result is even.
Example input Expected output
1001 2010 1 2
0 1 3 0
9988 0 0
1010 2 2
A
b
c N
b c A
8.04. Check if a given Sudoku board configuration is valid or
not.
Example input:
Expected output: true
Examples input:
Expected output: False
Example input Expected output
1221 Even
23 Pesho 3
6543 Strahil 11
489 Pesho 17
5 3 - - 7 - - - -
6 - - 1 9 5 - - -
- 9 8 - - - - 6 -
8 - - - 6 - - - 3
4 - - 8 - 3 - - 1
7 - - - 2 - - - 6
- 6 - - - - 2 8 -
- - - 4 1 9 - - 5
- - - - 8 - - 7 9
5 3 4 6 7 8 9 1 2
6 7 2 1 9 5 3 4 8
1 9 8 3 4 2 5 6 7
8 5 9 - 6 - - - 3
4 2 6 8 - 3 - - 1
7 1 3 9 2 - - - 6
- 6 - 5 5 - 2 8 -
- - - 4 1 9 6 3 5
3 4 5 2 8 6 1 7 9
8.05. Write a program which by a given random text, displays
all the different words in the text one by one in a row
arranged lexicographically, starting from the smallest one.
Use the standard character order with respect to the ASCII
table in the lexicographic ordinance, considering that
capital letters are before lowercase letters. For a word we
take every string containing only lowercase and uppercase
symbols from the Latin alphabet. Consider all other
characters as separators between the words. Implement the
code of the program without using libraries other than
<iostream. Еach memory the program uses must be dynamically
allocated to the exact size and correctly released.
github.com/andy489