Write a program that reads a single line of input and prints the first and last characters of the given input and prints the asterisk character (*) in place of the remaining characters.Input
Sum of the series
Write a program to find the sum S of the series where S = x - x^3 + x^5 + ....... upto N terms.
Input
The first line of input is an integer X. The second line of input is an integer N.
Explanation
If we take X value as 2 in the series upto 5 terms.
Then the series is 2 - 23 + 25 - 27 + 29
So, the output should be
410.
Sample Input 1
2
5
Sample Output 1
410
Sample Input 2
3
2
Sample Output 2
-24
Right Angled Triangle - 3
Given an integer number N as input. Write a program to print the right-angled triangular pattern of N rows as shown below.
Input
The first line of input is a positive integer.
For example, if the given number is
5, the output should be
______
| /
| /
| /
| /
|/
Sample Input 1
5
Sample Output 1
______
| /
| /
| /
| /
|/
Sample Input 2
7
Sample Output 2
________
| /
| /
| /
| /
| /
| /
|/
Hollow Right Triangle - 2
Given an integer number N as input. Write a program to print the hollow right-angled triangular pattern of N lines as shown below.
Note: There is a space after each asterisk (*) character.
Input
The first line of input is an integer N.
Explanation
In the given example the hollow right angled triangle of side
5. Therefore, the output should be
*
* *
* *
* *
* * * * *
Sample Input 1
4
Sample Output 1
*
* *
* *
* * * *
Sample Input 2
5
Sample Output 2
*
* *
* *
* *
* * * * *
Hollow Right Triangle
Given an integer number N as input. Write a program to print the hollow right-angled triangular pattern of N lines as shown below.
Note: There is a space after each asterisk (*) character.
Input
The first line of input is an integer N.
Explanation
In the given example the hollow right angled triangle of side
4. Therefore, the output should be
* * * *
* *
* *
*
Sample Input 1
4
Sample Output 1
* * * *
* *
* *
*
Sample Input 2
6
Sample Output 2
* * * * * *
* *
* *
* *
* *
*