Python Code For A Boolean Matrix Question

Today we are going to share a Python Code For A Boolean Matrix Question. If you are a python beginner and want to start learning the python programming.

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Python Code For A Boolean Matrix Question code

Copy the below python program and execute it with the help of python compiler.

def modifyMatrix(mat) :

# variables to check if there are any 1

# in first row and column

row_flag = False

col_flag = False

# updating the first row and col

# if 1 is encountered

for i in range(0, len(mat)) :

for j in range(0, len(mat)) :

if (i == 0 and mat[i][j] == 1) :

row_flag = True

if (j == 0 and mat[i][j] == 1) :

col_flag = True

if (mat[i][j] == 1) :

mat[0][j] = 1

mat[i][0] = 1

# Modify the input matrix mat[] using the

# first row and first column of Matrix mat

for i in range(1, len(mat)) :

for j in range(1, len(mat) + 1) :

if (mat[0][j] == 1 or mat[i][0] == 1) :

mat[i][j] = 1

# modify first row if there was any 1

if (row_flag == True) :

for i in range(0, len(mat)) :

mat[0][i] = 1

# modify first col if there was any 1

if (col_flag == True) :

for i in range(0, len(mat)) :

mat[i][0] = 1

# A utility function to print a 2D matrix

def printMatrix(mat) :

for i in range(0, len(mat)) :

for j in range(0, len(mat) + 1) :

print( mat[i][j], end = "" )

print()

# Driver Code

mat = [ [1, 0, 0, 1],

[0, 0, 1, 0],

[0, 0, 0, 0] ]

print("Input Matrix :")

printMatrix(mat)

modifyMatrix(mat)

print("Matrix After Modification :")

printMatrix(mat)

Output:

Input Matrix :
1001
0010
0000
Matrix After Modification :
1111
1111
1011

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Python Code For A Boolean Matrix Question