Question

Write a program to input a sentence and convert it into lowercase and print a new
sentence after interchanging first word with last word & vice-versa.
Example:
Sample input
WE ARE IN CYBER WORLD
Sample output
world are in cyber we​

Answer 1

Answer:

// C++ program to convert

// first character uppercase

// in a sentence

#include<bits/stdc++.h>

using namespace std;

string convert(string str)

{

for (int i = 0;

i < str.length(); i++)

{

// If first character of a

// word is found

if (i == 0 && str[i] != ' ' ||

str[i] != ' ' && str[i - 1] == ' ')

{

// If it is in lower-case

if (str[i] >= 'a' && str[i] <= 'z')

{

// Convert into Upper-case

str[i] = (char)(str[i] - 'a' + 'A');

}

}

// If apart from first character

// Any one is in Upper-case

else if (str[i] >= 'A' &&

str[i] <= 'Z')

// Convert into Lower-Case

str[i] = (char)(str[i] + 'a' - 'A');

}

return str;

}

// Driver code

int main()

{

string str = "gEEks fOr GeeKs";

cout << (convert(str));

return 0;

}

Answer 2

$\large\mathsf\color{pink}{Solution\: using\: python\: 3}$

def convert(s):

s_lower = s.lower()

s_arr = s_lower.split()

s_arr[0], s_arr[-1] = s_arr[-1], s_arr[0]

return " ".join(s_arr)

s = input("enter string: ")

print(convert(s))

$\large\mathsf\color{lightgreen}useful?\: \color{white}\longrightarrow\: \color{orange}brainliest!$