Minesweeper

If you are designing a minesweeper game, you would need to mark each block with how many mines are adjacent to it.

Write a program that places mines in a square grid. And marks each block with the number of mines adjacent to it.

Problem 9 - Palindromes

Write a program to find if a string is a palindrome.
Make it case insensitive.

Eg. "MADAM" - returns true
"ROB" - returns false
"Madam" - returns true
"mADaM" - returns true
"WhaWha"- returns false

Day 8 - Substring

You are given two strings - haystack and needle.
You have to find the position of the first occurrence of needle in haystack.
Write a function that takes haystack and needle as input and returns the position of the first occurrence of needle or -1 if needle is not found in haystack.

Eg.

haystack = "Once upon a time, there lived a little boy named Jingle!"
needle = "up"
Return Value = 5

If needle = "fox"
Return Value = -1

Day 7 - Who Won?

You are given an array of strings containing a 3 letter country name followed by a hyphen (-) and A 3 digit number. These strings represent the number of points earned by the students of the respective country in a programming competition.
NOTE: There are only 3 countries participating, India, China and USA. The 3 letter code for the countries are IND, CHI and USA respectively.

Write a function that calculates the total number of points scored by the students of IND, CHI and USA and returns a string in the same format with the country code followed by a hyphen followed by the total points scored by the country which has the highest points.

eg
INPUT -> ["IND-32","CHI-33","USA-29","USA-30","IND-12","CHI-34"]
OUTPUT -> "CHI-67"

NOTE: It is guaranteed that the sum of the scores won't be equal.

Day 6 - Question : Breaking Strings

You are given a string containing a string Date of Birth in DD/MM/YYYY format. Eg "15/08/1947". Write a function that takes the string as an input and returns a vector containing 3 elements:
v[0] = Day as an integer
v[1] = Month as an integer
v[2] = Year as an integer

eg:
INPUT : "15/08/1947"
Output: [15, 8, 1947]

Day 5 - The second tallest student

Problem - You are given an integer array of heights of students in a class. Write a function that returns the height of the 2nd tallest child in the class.

Day 4 problem - Whats the distance

Here is todays problem.

You have a square grid extending infinitely in all directions. Your home is at point (hx,hy). You have to reach your college located at point (cx, cy). You can only travel parallel to the direction of the X or the Y axis and each step is 1 unit long. Write a program to find the number of steps between your home and your college.

Write it now. Test it. And come back later to check the solution.

Day 3 - Programming problem: Shortest height

Question: You are given an array height[] of positive integers containing the heights of the children in a class. Write a function that takes height[] as an input and gives the shortest height as the output.

For example -
Input - [23,29,20,22,23,22,19,25,21,26,23,24,18,30]
Output - 18

Request: Pls take the quiz the right side bar to give feedback on the easiness/difficulty level of the questions. Thanks

Solution to Group 2 Problem

Group 2

View the problem here.

Here we have to add the sum of digits of a number. We can go about doing it by taking taking 1 digit at a time and adding it to the result.




Note: that whenever you write programs like these, always test for boundary conditions. Eg. Will the program work when the input is 0? What if the number is a negative number? etc.

Please click on the image for clarity.

Request: Please take the quiz or leave your comment to help me make this site more useful. Thanks

Todays Question: Group 3

Que 1.3> Write a program that finds the sum of the digits of a number, using recursion.

Todays Question: Group 2

Que 1.2> Write a program to find the sum of the digits in a number.

Todays Question: Group 1

Que 1.1> Write a program to add 2 numbers.