Answer to Question #316959 in Python for Kumar

Question

Unique Matrix

You are given a N*N matrix. write a program to check if the matrix is unique or not. A unique Matrix is a matrix if every row and column of the matrix contains all the integers from 1 to N

Input

The first line contains an integer N.

The next N lines contains N space separated values of the matrix.

Output:

The output contains a single line and should be True if the matrix is unique matrix and False otherwise.

Sample input:

4

1 2 3 4

2 3 4 1

3 4 1 2

4 1 2 3

Sample output:

True

Sample Input2

4

1 2 3 3

2 3 4 1

3 4 1 2

4 1 2 3

Sample Output

False

Answer 1

n = int(input())
matrix = [[int(i) for i in input().split()] for _ in range(n)]
columns = [[matrix[i][j] for i in range(n)] for j in range(n)]

numbers = list(range(1, n + 1))

result = True
for i in range(n):
    for j in range(n):      
        if numbers[j] not in matrix[i] or numbers[j] not in columns[i]:
            result = False
print(result)