RowWiseSum.py

# For a given two-dimensional integer array/list of size (N x M), find and print the sum of each of the row elements in a single line, separated by a single space.
# Sample Input 1:
# 1
# 4 2 
# 1 2 
# 3 4 
# 5 6 
# 7 8
# Sample Output 1:
# 3 7 11 15 

from sys import stdin

def rowWiseSum(mat, nRows, mCols):

    rowsSum = []
    for i in range(nRows):
        sum = 0
        for j in range(mCols):

            sum += mat[i][j]
        rowsSum.append(sum)

    for i in rowsSum:
        print(i, end=" ")
    



#Taking Input Using Fast I/O
def take2DInput() :
    li = stdin.readline().rstrip().split(" ")
    nRows = int(li[0])
    mCols = int(li[1])
    
    if nRows == 0 :
        return list(), 0, 0
    
    mat = [list(map(int, input().strip().split(" "))) for row in range(nRows)]
    return mat, nRows, mCols


#main
t = int(stdin.readline().rstrip())

while t > 0 :

    mat, nRows, mCols = take2DInput()
    rowWiseSum(mat, nRows, mCols)
    print()

    t -= 1