feat: first commit

README.md

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-# code-challenges
-Code challenges for all Draftea tech candidates
+# Draftea Code Challenges
+
+Code challenges for all Draftea tech candidates.
+
+## Index
+
+- [Backend](backend/README.md)
+- [Frontend](frontend/README.md)
+- [Infrastructure](infra/README.md)
+- [mobile](frontend/README.md)

backend/README.md

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+# Martian Robots
+
+Hi! If you are reading this is because we would love you to be part of the Engineering team at
+Draftea and keep moving forward in the coding challenge. We ask you to please share your private
+project with @joecohens @danteay @peopledraftea when you have finished it.
+
+## The Problem
+
+The surface of Mars can be modelled by a rectangular grid around which robots are able to move
+according to instructions provided from Earth. You are to write a program that determines each
+sequence of robot positions and reports the final position of the robot. A robot position consists
+of a grid coordinate (a pair of integers: x-coordinate followed by y-coordinate) and an orientation
+(N, S, E, W for north, south, east, and west). A robot instruction is a string of the letters "L",
+"R", and "F" which represent, respectively, the instructions:
+
+- Left : the robot turns left 90 degrees and remains on the current grid point.
+- Right : the robot turns right 90 degrees and remains on the current grid point.
+- Forward : the robot moves forward one grid point in the direction of the current orientation and
+  maintains the same orientation.
+
+The direction North corresponds to the direction from grid point (x, y) to grid point (x, y+1).
+There is also a possibility that additional command types may be required in the future and
+provision should be made for this.
+
+Since the grid is rectangular and bounded (... yes Mars is a strange planet), a robot that moves
+"off" an edge of the grid is lost forever. However, lost robots leave a robot "scent" that
+prohibits future robots from dropping off the world at the same grid point. The scent is left at
+the last grid position the robot occupied before disappearing over the edge. An instruction to move
+"off" the world from a grid point from which a robot has been previously lost is simply ignored by
+the current robot.
+
+## The Input
+
+The first line of input is the upper-right coordinates of the rectangular world, the lower-left
+coordinates are assumed to be 0, 0. The remaining input consists of a sequence of robot positions
+and instructions (two lines per robot). A position consists of two integers specifying the initial
+coordinates of the robot and an orientation (N, S, E, W), all separated by whitespace on one line.
+
+A robot instruction is a string of the letters "L", "R", and "F" on one line. Each robot is
+processed sequentially, i.e., finishes executing the robot instructions before the next robot
+begins execution. The maximum value for any coordinate is 50. All instruction strings will be less
+than 100 characters in length.
+
+## The Output
+
+For each robot position/instruction in the input, the output should indicate the final grid
+position and orientation of the robot. If a robot falls off the edge of the grid the word "LOST"
+should be printed after the position and orientation.
+
+### Sample Input
+
+The input is a text file:
+
+```text
+5 3
+1 1 E
+RFRFRFRF
+3 2 N
+FRRFLLFFRRFLL
+0 3 W
+LLFFFLFLFL
+```
+
+### Sample Output
+
+```text
+1 1 E
+3 3 N LOST
+2 3 S
+```

frontend/README.md

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+# work in progress

infra/README.md

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+# work in progress

mobile/README.md

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+# work in progress