Answer to Question #273752 in Python for Pinky

Question

Consider a square matrix , a size n*n and a integer , x . Calculate the row number , r and column , c or x in a. If the sum of R and C is an even number, find the sum s of all even numbers in the matrix and if the sum of r and c is odd , then find the sum s of all odd numbers in the matrix.

Answer 1

def fun(a):
    r = len(a)
    c = len(a[0])
    x = r + c
    s = 0

    for i in range(r):
        for j in range(c):
            if a[i][j]%2 == x%2:
                # if a[i][j] has the same odd parity as x
                s += a[i][j]
    return s

import random
r = 3
c = 3
a = []
for i in range(r):
    a.append([random.randint(0, 9) for _ in range(c)])
print("Matrix a:", a)
for i in range(r):
    print(a[i])
    
print("fun(a) =", fun(a))