# Collatz Explorer
> ⚠️ **Experimental — generated with no human supervision.** This realm was
> produced automatically by an MCP-driven agent to exercise the gno MCP server
> and tooling, and to generate test content for gno compilers, linters and
> formatters. **Not audited. Not for production.** Full context & folder README:
> [r/moul/x/daily](https://github.com/moul/gno-contracts/blob/main/r/moul/x/daily/README.md)
---
A hailstone-sequence explorer realm. Call `Compute(n)` to walk the Collatz
sequence for a positive integer `n` — the realm records its stopping time
(number of steps to reach 1) and peak value, attributed to your address.
The root page shows a leaderboard of the longest sequences submitted, and
`/<n>` renders the full hailstone sequence for any `n` on the fly.
Realm path: `gno.land/r/REPLACE_ADDR/collatz`
## Example calls
```
# record a run for n = 27 (111 steps, peak 9232)
gnokey maketx call -pkgpath "gno.land/r/REPLACE_ADDR/collatz" \
-func Compute -args 27 ...
# view the leaderboard
gnokey query vm/qrender --data "gno.land/r/REPLACE_ADDR/collatz:"
# view the full hailstone sequence for 27
gnokey query vm/qrender --data "gno.land/r/REPLACE_ADDR/collatz:/27"
```
<!-- BEGIN GNOCONTRACTS FOOTER (generated by `make readmes`; do not edit below) -->
---
Part of **[moul/gno-contracts](https://github.com/moul/gno-contracts)** — moul's versioned gno.land contracts. See the repository for the full catalog, build/test tooling, and usage.
**Dependency graph:**
> 🧪 **Highly experimental — potentially vibe-coded.** Not audited; may break, change, or be removed at any time. Do not use with anything of value. Full disclaimer: [DISCLAIMER](https://github.com/moul/gno-contracts/blob/main/DISCLAIMER.md).
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Compute(cur interface {.seal func(); Address func() .uverse.address; IsCode func() bool; IsCurrent func() bool; IsEphemeral func() bool; IsUser func() bool; IsUserCall func() bool; IsUserRun func() bool; PkgPath func() string; Previous func() .uverse.realm; String func() string; Sub func(string) .uverse.realm; Subpath func() string}, n int)
Render(path string) string
Signatures reconstructed verbatim from vm/qfuncs — interface params keep their inline definitions.
vm/qrender output, sanitized (docs/render-security.md) and displayed in an empty-sandbox iframe — scripts, forms and popups cannot run. Links stay inert in-preview; right-click to open.