Techniquecore
Rollback (undo) technique
Also called undo operations, rollback data structures.
Operations are undone in stack order, which lets offline dynamic algorithms revisit states cheaply.
Operations are undone in stack order, which lets offline dynamic algorithms revisit states cheaply.
About this page
The build computes these levels from the evidence in the repository. Each row says what the next level needs. Read what the levels mean.
| Ladder | Level | What the next level needs |
|---|---|---|
| Human proof | H0 no proof |
|
| Lean | L0 no Lean part |
|
| Visual | V0 none |
|
| Writing | W0 stub |
|
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