Problem 60251. Instructions Following
Complete the function follow(s) which, for a given string (containing only the letters 'f', 'b', 'l', 'r'), calculates the final position according to the following rule:
- The letter 'f' indicates to move forward by (0,1),
- The letter 'b' indicates to move backward by (0,-1),
- The letter 'l' indicates to move left by (-1,0),
- The letter 'r' indicates to move right by (1,0).
Example: consider the initial position at point (0,0). If your list of instructions is 'fflff', then you should move forward twice, take a step to the left, then move forward again twice, and finally you will be at (-1, 4):
Other examples:
- follow('ffrff') returns (1,4)
- follow('fblr') returns (0,0)
Solution Stats
Problem Comments
Solution Comments
Show commentsProblem Recent Solvers7
Suggested Problems
-
232 Solvers
-
Back to basics 25 - Valid variable names
322 Solvers
-
Sort numbers by outside digits
147 Solvers
-
385 Solvers
-
Converting numbers back from extended form
117 Solvers
More from this Author53
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!