← All problemsSign in

Post Office

CodeChefRating 2659Open on judge ↗

It's the 1st of the month again, which means it's time for Dave to pay his bills. Dave needs to go to the post office to mail his rent cheque, and wants to take the shortest route possible. Dave wonders how many different shortest routes he can take. Dave lives at the southwest corner of town (0,0) and the post office is at the northeast corner of town (W,H). It takes Dave exactly one minute to

HINT LADDERno hints yet
L1 Observation
L2 Technique
L3 Approach
L4 Pseudo-code
🔒
L5 Full solution
L5 unlocks only if you insist twice
solution.cppC++17

CodeSearch Tutor

Hints, not spoilers — it won’t hand over the full solution unless you insist.

voice by Sarvam AI

Sign in to chat with the tutor and save your progress.

Sign in to start