Canadian Computing Competition: 2022 Stage 1, Junior #3
The CCC harp is a stringed instrument with strings labelled
A
, B
, …, T
. Like other instruments, it can be out of tune.
A musically inclined computer science student has written a clever computer program to help tune the harp. The program analyzes the sounds produced by the harp and provides instructions to fix each string that is out of tune. Each instruction includes a group of strings, whether they should be tightened or loosened, and by how many turns.
Unfortunately, the output of the program is not very user
friendly. It outputs all the tuning instructions on a single
line. For example, the single line AFB+8HC-4
actually contains
two tuning instructions: AFB+8
and HC-4
. The first
instruction indicates that harp strings A
, F
, and B
should
be tightened turns, and the second instruction indicates
that harp strings H
and C
should be loosened turns.
Your job is to take a single line of tuning instructions and make them easier to read.
Input Specification
There will be one line of input which is a sequence of tuning instructions. Each tuning
instruction will be a sequence of uppercase letters, followed by a plus sign (+
) or minus
sign (-
), followed by a positive integer. There will be at least one instruction and at least
one letter per instruction. Also, each uppercase letter will appear at most once.
The following table shows how the available marks are distributed.
Marks Awarded | Number of Instructions | Number of Letters in an Instruction | Number of Turns | Example Input |
---|---|---|---|---|
marks | AFB+4 | |||
marks | A+8H-4 | |||
marks | AFB+8HC-4 | |||
marks | AFB+88HC-444 |
Output Specification
There will be one line of output for each tuning instruction. Each line of output will consist of three parts, each separated by a single space: the uppercase letters referring to the strings, tighten if the instruction contained a plus sign or loosen if the instruction contained a minus sign, and the number of turns.
Sample Input 1
AFB+8HC-4
Sample Output 1
AFB tighten 8
HC loosen 4
Explanation of Sample Output 1
The input contains two tuning instructions: AFB+8
and HC-4
.
Sample Input 2
AFB+8SC-4H-2GDPE+9
Sample Output 2
AFB tighten 8
SC loosen 4
H loosen 2
GDPE tighten 9
Explanation of Sample Output 2
The input contains four tuning instructions: AFB+8
, SC-4
, H-2
, and GDPE+9
.
Comments
https://dmoj.ca/submission/6228517 Using a for loop
Why is this wrong??? https://dmoj.ca/submission/6051315
Edit: nvm
This comment is hidden due to too much negative feedback. Show it anyway.
This question is so hard that you can't even put it in a for loop
No, it is possible to put it into time.
Check this submission out: https://dmoj.ca/submission/4371948
Using a while loop is pretty cool
"This comment is hidden due to too much negative feedback. Show it anyway." Why does it say that, that is not at all negative feedback