Hello, does anyone know how to do this problem?

Try to write a program to check if a generalized sudoku board is completed correctly or not.

It is considered that a table is correctly completed if there are no duplicate values on rows, columns or groups (squares).

Input data:

Unfortunately, the size of the board is not always the same, it being read from the keyboard at the beginning of the program, in the format:

line_number number_columns no_groups

Then enter from the keyboard the contents of each cell of the sudoku board, in the format:

line_number_column column_group number effective_value

Output data:

1 will be displayed if the board is correct, or 0 if not.

mentions:

The groups cannot overlap and are all the same size.

The value is just a natural number.

It is guaranteed that there are at least 2 rows, 2 columns, 2 groups.

The number of the row, column, group, starts from 0.

Example:

(comments are for clarity, they are not entered at the entrance)

4 4 4

0 0 0 1

0 1 0 2

1 0 0 3

1 1 0 4

// so far it was the first square

0 2 1 3

0 3 1 4

1 2 1 5

1 3 1 6

// so far the 2nd square

2 2 3 7

2 0 2 5

3 1 2 0

2 3 3 8

3 2 3 1

2 1 2 6

3 0 2 9

3 3 3 2

// last 2 mixed squares

the sudoku matrix would be: (4x4 with 4 groups)

## 1 2 | 3 4

3 4 | 5 6

5 6 | 7 8

9 0 | 1 2

this table is correct, having no duplicates either on the line, or on the column, or on the group.

Example of incorrect table:

## 1 1 | 3 4

3 4 | 5 6

5 6 | 7 8

9 0 | 1 2

line 0 has “1” doubled

## 1 2 | 3 4

1 4 | 5 6

5 6 | 7 8

9 0 | 1 2

column 0 has “1” doubled

## 1 2 | 3 4

3 4 | 5 6

5 6 | 7 8

9 0 | 1 7

group 3 has “7” doubled.

!! This is only 1 test, in total there are 5 to correct the problem.