## Question :-

- Define a Python function
`ascending(l)`that returns`True`if each element in its input list is at least as big as the one before it.

Here are some examples to show how your function should work.>>> ascending([]) True >>> ascending([3,3,4]) True >>> ascending([7,18,17,19]) False

- A list of integers is said to be a valley if it consists of a sequence of
*strictly*decreasing values followed by a sequence of*strictly*increasing values. The decreasing and increasing sequences must be of length at least 2. The last value of the decreasing sequence is the first value of the increasing sequence.

Write a Python function`valley(l)`that takes a list of integers and returns`True`if`l`is a valley and`False`otherwise.

Here are some examples to show how your function should work. - A two dimensional matrix can be represented in Python row-wise, as a list of lists: each inner list represents one row of the matrix. For instance, the matrix
1 2 3 4 5 6

would be represented as

`[[1,2,3],[4,5,6]]`.The transpose of a matrix makes each row into a column. For instance, the transpose of the matrix above is

1 4 2 5 3 6

Write a Python function

`transpose(m)`that takes as input a two dimensional matrix using this row-wise representation and returns the transpose of the matrix using the same representation.Here are some examples to show how your function should work. You may assume that the input to the function is always a non-empty matrix.

# Solution :-

Download Python File :- Download

def ascending(lst): for i in range(0, len(lst) - 1): if lst[i] > lst[i+1]: return False return True def valley(lst): flag = False for i in range(0, len(lst) - 1): if lst[i] == lst[i+1]: return False if not flag: if lst[i] > lst[i+1]: continue if lst[i] < lst[i+1]: flag = True else: if lst[i] > lst[i+1]: return False elif lst[i] < lst[i+1]: continue return flag def transpose(lst): return [list(x) for x in zip(*lst)]

Can be tested with the following code :-

print(ascending([])) #True print(ascending([3,3,4])) #True print(ascending([7,18,17,19])) #False print("Valley") print(valley([3,2,1,2,3])) print(valley([3, 2, 1])) print(valley([3,3,2,1,2])))

## 13 Comments

## patil · August 17, 2017 at 7:24 PM

ascending([7])

True\n

File “test.py”, line 15\n

if lst[i] lst[i+1]:\n

^\n

SyntaxError: invalid syntax

## Mit Patel · August 17, 2017 at 7:27 PM

Error fixed. You can check it out again.

## sami · August 18, 2017 at 8:47 AM

Thank you !

Shukriya !

Dhanyawaad !

Merci !

Gracias !

## Mayuresh · August 20, 2017 at 5:03 AM

Sir please upload week 4 programming assignment

## Mayuresh · August 25, 2017 at 6:38 AM

sir week 4 programming assignment

plz tommorow is last date

## sami · August 25, 2017 at 3:27 PM

Please upload the Week 4 Programming assigment. Tomorrow is the last date for submitting it.

## visha · August 25, 2017 at 6:22 PM

kindly provide the solutions for week 4 programming test asap.Thanks.

## Thejaswini · August 26, 2017 at 8:43 AM

Please post the week 4 assignment answers

## Thejaswini · August 26, 2017 at 2:44 PM

Post week 4 assignment

## A · August 29, 2017 at 3:35 PM

Post Week 5 Solution

## yashrs · September 2, 2017 at 2:55 PM

We posted Week 5 solution for Python here

## Mayuresh · September 2, 2017 at 12:07 PM

sir please upload week 5 assignmnet

today is last day

## Nikhil P · September 2, 2017 at 2:03 PM

sir please upload week 5 programming assignment….