URIs:

• /trees/lca

  Returns the lowest common ancestor (node farthest from the root common to a couple of nodes in the tree)

  POST json format example

   {
   	"tree": "20,8,4,-1,-1,12,10,-1,-1,14,-1,-1,22,-1,-1",
   	"node1": "8",
   	"node2": "4"
   }
  

  Response example

   {
     "lca": "8",
     "exists": True
   }
  

URIs:

• /romans/iTor

  Converts an integer (base 10) to a roman numeral

  POST json format example

   {
     "number" : "10"
   }
  

  where, number: the integer in base 10

  Response example

   {
     "roman": "X",
   }
  

• /romans/rToi

  Converts a roman numeral to integer (base 10)

  POST json format example

  {
    "roman" : "CC"
  }
  

  where, roman: the roman numeral to be converted

  Response example

  {
    "number": "200",
  }
  

URI: https://puzzapi.herokuapp.com/sumToTarget

Returns a solution to the 2SUM and 3SUM problem.

• 2SUM: Return a combination of two different indices from a collection of integers whose corresponding elements add up to a target value.

• 3SUM: Return a combination of three different indicies from a collection of integers whose corresponding elements add up to a target value.

POST json format example

{
  "collection" : "1,2,3,4,5,6",
  "target": "7",
  "mode" : "two"
}

where,

• collection: is comma seperated list of numbers,

• target: is the what the sum of the combination should,

• mode: can take values: "two" (for 2SUM) and "three" (for 3SUM)

Response example

If a solution is found:

{
  "solution": [0,5],
  "exists": true
}

If a solution is not found:

{
  "solution": None,
  "exists": false
}

If something wrong with the input:

{
  "error": "Wrong mode!"
}