Merge pull request #13 from ProgSoc/slime-probmd

Clarifications, disambiguations and improvements to slime-chunk-farm prob.md

Author: TianLangHin

competition/slime-chunk-farm/prob.md

@@ -13,15 +13,20 @@ difficulty = 1
 
 # ⛏️ Slime Chunk Farm
 
-Steve would like to build a brand new Slime farm in his world. Since slimes only spawn in designated **Slime chunks** (16m*16m area where slimes can be found), Steve will need to find a suitable location for his farm. 
+Steve would like to build a brand new Slime farm in his world. Since slimes only spawn in designated **slime chunks** (16m by 16m area where slimes can be found), Steve will need to find a suitable location for his farm.
 
 He's only gathered enough resources to convert 50 slime chunks into farms, and he would like for the chunks to be as close together as possible.
 
-It's up to you to help steve find the **smallest area of land** that contains atleast **50 slime chunks**!
+It's up to you to help Steve find the **smallest rectangular area of land**
+that contains at least **50 slime chunks**!
 
-## Input Format
-The input is a 100x100 grid of characters. Each character represents a chunk, which is a 16x16 area of land. A Slime chunk is denoted by an "**S**" while normal chunks are denoted by "**.**"
+## Input
 
+The input is a 100x100 grid of characters.
+Each character represents a chunk, which is a `16m x 16m` area of land.
+A Slime chunk is denoted by the character "**S**" while other chunks are denoted by "**.**".
+
+The following is a simplified example of such input, with a size of 5x5 instead of 100x100.
 ```text
 ...S.
 .S...
@@ -30,5 +35,17 @@ The input is a 100x100 grid of characters. Each character represents a chunk, wh
 .S.S.
 ```
 
-## Output Format
-Your output should be an integer representing the smallest area (in meters) in which 50 slime chunks could be found. (Remember that one chunk is (16*16) = 256 m^2)
+## Output
+
+Your output should be an integer representing the smallest rectangular area (in meters squared)
+in which at least 50 slime chunks can be found.
+(Remember that one chunk is `16*16 = 256 m^2`.)
+
+If we consider a simplified version of this question where we are only looking for **4** slime chunks,
+using the example above, the smallest area turns out to be **2048 m^2**,
+being the 4x2 rectangle in the bottom-rightmost corner of the grid.
+
+In such a case the output to be given will be
+```
+2048
+```