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

Here, int the code , we have declared an double dimenstional array matrix startingly assigned 0 to each value .

We have used two loop for i and j index to input values from console

In length variable , we have stored rows/column count

After inputting values , we have again used two loop for i and j index to calculate sum of all rows and columns

Then after that, again loop is used to count sum of last column which is already a sum of all rows

Then we have printed the entered array in console

And , then printed the summed array in console

____________________________________

Please find below code in Python :

length=int(input("Input number of rows/columns: "))

matrix=[[0 for i in range(length+1)] for j in range(length+1)]

for i in range (length):

for j in range (length):
value= int(input("Enter value for row : "))
matrix[i][j]=value

colCount=0   
for i in range (length):
sumRow=0
sumCol=0
  
for j in range (length):
sumRow+= matrix[i][j]
sumCol+= matrix[j][i]
  

matrix[i][j+1]=sumRow

matrix[length][colCount]=sumCol
colCount+=1

sumLastCol=0
for i in range(length):
sumLastCol+=matrix[i][length]
matrix[length][length]=sumLastCol

print("Input cell value: ")
for i in range (length):

for j in range (length):
print(matrix[i][j],end=" ")
print()

print("Result : ")
for i in range (length+1):

for j in range (length+1):
print(matrix[i][j],end=" ")
print()

Please find below OUTPUT screenshot: