Leaderboard
Showing:
Handle Score
@Ibrahim Nash 5725
@blackshadows 5685
@akhayrutdinov 5111
@mb1973 4989
@Quandray 4908
@saiujwal13083 4156
@sanjay05 3762
@marius_valentin_dragoi 3511
@sushant_a 3453
@KshamaGupta 3318
@the_coder95 3302
Complete Leaderboard
Josephus problem
Easy Accuracy: 52.47% Submissions: 31264 Points: 2

Given the total number of persons n and a number k which indicates that k-1 persons are skipped and kth person is killed in circle in a fixed direction.

The task is to choose the safe place in the circle so that when you perform these operations starting from 1st place in the circle, you are the last one remaining and survive.

Example 1:

Input:
n = 3 k = 2
Output: 3
Explanation: There are 3 persons so 
skipping 1 person i.e 1st person 2nd 
person will be killed. Thus the safe 
position is 3.

 

Example 2:

Input:
n = 5 k = 3
Output: 4
Explanation: There are 5 persons so 
skipping 2 person i.e 3rd person will 
be killed. Thus the safe position is 4.

 

Your Task:
You don't need to read input or print anything. You are required to complete the function josephus () that takes two parameters n and k and returns an integer denoting safe position

Expected Time Complexity: O(N).
Expected Auxiliary Space: O(N).

Constraints:
1 <= k, n <= 20

to report an issue on this page.

Editorial

We strongly recommend solving this problem on your own before viewing its editorial. Do you still want to view the editorial?

Yes

All Submissions

My Submissions:

Login to access your submissions.

Josephus problem

Output Window