cf
/
mirror
Problemset
Contests
Favorites
Profile
Tools
Settings
Problemset
Contests
Favorites
Profile
Complexity
Stress
Graph
Templates
Crawler
Gargari and Permutations
☆
save
CF
463D
⊞ graph
1900
· candidate master
2s
256 MB
⌨ stdin/stdout
#dfs and similar
#dp
#graphs
#implementation
hide
Examples
Sample 1
of 1
Input
copy
4 3
1 4 2 3
4 1 2 3
1 2 4 3
Output
copy
3
58%
463D.cpp
GNU C++20 (64)
GNU C11
Python 3
PyPy 3
Java 21
Rust
Go
C#
JavaScript
Ruby
Pascal
Haskell
Kotlin · no run
loading editor…
Ln
11
·
137 B
GNU C++20 (64)
⟲ Reset
Run samples
Submit
▸
Custom test
run your code against any stdin
▸
Stress test
run a brute + generator against your solution to find a failing case
▾
Graph visualizer
paste edges (or use sample) — auto-detects trees / DAGs / weighted graphs ·
g g
to open
loading graph engine…
▸
Editorial & videos
official tutorial + youtube — hidden while contest is live