Sum and Prod python


Problem Statement :


sum

The sum tool returns the sum of array elements over a given axis.

import numpy

my_array = numpy.array([ [1, 2], [3, 4] ])

print numpy.sum(my_array, axis = 0)         #Output : [4 6]
print numpy.sum(my_array, axis = 1)         #Output : [3 7]
print numpy.sum(my_array, axis = None)      #Output : 10
print numpy.sum(my_array)                   #Output : 10
By default, the axis value is None. Therefore, it performs a sum over all the dimensions of the input array.


prod

The prod tool returns the product of array elements over a given axis.

import numpy

my_array = numpy.array([ [1, 2], [3, 4] ])

print numpy.prod(my_array, axis = 0)            #Output : [3 8]
print numpy.prod(my_array, axis = 1)            #Output : [ 2 12]
print numpy.prod(my_array, axis = None)         #Output : 24
print numpy.prod(my_array)                      #Output : 24
By default, the axis value is None. Therefore, it performs the product over all the dimensions of the input array.


Task

You are given a 2-D array with dimensions N X M.
Your task is to perform the sum tool over axis 0 and then find the product of that result.


Input Format

The first line of input contains space separated values of N and M.
The next N lines contains M space separated integers.


Output Format

Compute the sum along axis 0. Then, print the product of that sum.


Solution :



title-img 


                            Solution in C :

import numpy

n,m=map(int,input().split())

array=[list(map(int,input().split())) for i in range(n)]
print(numpy.prod(numpy.sum(array,axis=0),None))








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