Answer to Question #311047 in Python for Manish

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

matrix=[]
print('Enter N: ', end='')
n = int(input())
print('Enter matrix:')
for i in range(n):
    a = input().split()
    matrix.append([])    
    for j in range(n):
        matrix[i].append(int(a[j]))
for num in range(1, n+1):
    for k in range(n):
        check = 0
        for i in range(n):
            if num == matrix[k][i]:
                check = 1
        if check == 0:
            break
        check = 0
        for i in range(n):
            if num == matrix[i][k]:
                check = 1
        if check == 0:
            break
    if check == 0:
        break
if check == 1:
    print('True')
else:
    print('False')