1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
#!/usr/bin/env python
# -*- coding: utf-8 -*-
def binary_matrix_score(matrix):
# Function to flip a row or column
def flip(arr):
return [1 - i for i in arr]
# Function to convert binary to decimal
def binary_to_decimal(binary):
return int(''.join(map(str, binary)), 2)
# First, optimize rows, make sure the first element is 1
for row in matrix:
if row[0] == 0:
row[:] = flip(row)
# Then, optimize columns excluding the first
cols = len(matrix[0])
rows = len(matrix)
for col in range(1, cols):
if sum(matrix[row][col] for row in range(rows)) < rows / 2:
for row in range(rows):
matrix[row][col] = 1 - matrix[row][col]
# Calculate score
score = sum(binary_to_decimal(row) for row in matrix)
return score
# Test cases:
print(binary_matrix_score(
[[0, 0, 1, 1], [1, 0, 1, 0], [1, 1, 0, 0]])) # Output: 39
print(binary_matrix_score([[0]])) # Output: 1
|
