Question

Write a Python program which adds up columns and rows of given table as shown in the specified figure. Example test case (the four lines below “Input cell value” are input from user, and the five lines below “Results:” are the output of the program.):

Input number of rows/columns (0 to exit)

4

Input cell value:

25 69 51 26

68 35 29 54

54 57 45 63

61 68 47 59

Result:

            25   69   51   26 171

            68   35   29   54 186

            54   57   45   63 219

            61   68   47   59 235

          208 229 172 202 811

Input number of rows/columns (0 to exit)

Answer 1

#Python code

while True:
    N = int(input('Input number of rows/columns (0 to exit): '))
    if N==0:
        break
    arr = [[0 for i in range(N+1)] for j in range(N+1)]
    print('Input cell value:')
    for i in range(N):
        for j in range(N):
            arr[i][j] = int(input())

    for i in range(N) :
        for j in range(N) :
            arr[N][i] += arr[j][i]

    for i in range(N+1) :
        for j in range(N) :
            arr[i][N] += arr[i][j]

    for i in range(N+1) :
        for j in range(N+1) :
            print("%4d"%arr[i][j],end = ' ')
        print()

#Screenshot