# 1. Python function that takes a list of words and return the  longest word and the length of the longest one.

words=input("Enter words or a sentence:")
st_word=[]
st_word=words.split()
lenght=len(st_word)
i=0
temp=""
long_word=""
index=0
while i < lenght:
    if  i==0 and lenght == 1:
        #print("longest word is :",st_word[i],"Lenght is :",len(st_word[i]))
        break
    if i == lenght-1:
        index=i
        index-=1
    else:
        index=i
        
    if len(st_word[index]) >= len(st_word[index+1]):
        if len(long_word) < len(st_word[index]):
            long_word=st_word[index]
            #temp=st_word[i]
        
        #else:
            #long_word=st_word[i+1]
            #temp=st_word[i+1]
    else:
        if len(long_word) < len(st_word[index]):
            long_word=st_word[index]
    i+=1
print("longest word is :",st_word[i],"Lenght is :",len(st_word[i]))   
 

Enter words or a sentence:reva
longest word is : reva Lenght is : 4

#2.Python function to remove the nth index character from a nonempty string.
word=input("Enter a string:")
n=int(input("Enter a index number:"))
new_word=word.replace(word[n],"")
print("New word after removing nth index charatacter:",new_word)

Enter a string:revathi
Enter a index number:2
New word after removing nth index charatacter: reathi

# 3. . Python function to get the last part of a string before a specified character.

words=input("Enter words or a sentence:")
spec_char=input("Enter a specified character:")
st_word=[]
st_word=words.split(spec_char)
print(st_word[-1:])

Enter words or a sentence:reva/revs/is/a
Enter a specified character:/
['a']

#4. Python function to sort a string lexicographically.

def sort_fun(words):
    st_word=[]
    st_word=words.split()
    st_word.sort()
    for i in st_word:
     
        print (i)
    

words=input("Enter words or a sentence:")

sort_fun(words)

Enter words or a sentence:reva is a good girl
a
girl
good
is
reva

#5.Python function to remove spaces from a given string.

def rem_space(words):
    words=words.strip(" ")
    new_word=""
    st_word=[]
    st_word=words.split()
    i=0
    while i < len(st_word):
        new_word=new_word+st_word[i]
        i+=1
    print(new_word)    


words=input("Enter words or a sentence:")
rem_space(words)

Enter words or a sentence:reva is good
revaisgood