# verification-helper: PROBLEM https://judge.yosupo.jp/problem/persistent_unionfind
import sequtils, strutils
import cplib/collections/rollback_unionfind
proc scanf(formatstr: cstring){.header: "<stdio.h>", varargs.}
proc ii(): int {.inline.} = scanf("%lld\n", addr result)
var n, q = ii()
var g = newSeqWith(q+1, newseq[(int, int, int)]())
var query = newSeqWith(q+1, newSeq[(int, int, int)]())
var ans = newSeq[int]()
for i in 0..<q:
var t, k, u, v = ii()
k += 1
if t == 0:
g[k].add((i+1, u, v))
else:
query[k].add((ans.len, u, v))
ans.add(-1)
var uf = initRollbackUnionFind(n)
proc dfs(x: int) =
for (id, u, v) in query[x]:
ans[id] = int(uf.issame(u, v))
for (y, u, v) in g[x]:
uf.unite(u, v)
dfs(y)
uf.undo()
dfs(0)
echo ans.join("\n")
Traceback (most recent call last):
File "/home/runner/.local/lib/python3.12/site-packages/onlinejudge_verify/documentation/build.py", line 71, in _render_source_code_stat
bundled_code = language.bundle(stat.path, basedir=basedir, options={'include_paths': [basedir]}).decode()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/runner/.local/lib/python3.12/site-packages/onlinejudge_verify/languages/nim.py", line 86, in bundle
raise NotImplementedError
NotImplementedError
verify/collections/rollbackuf_yosupo_test.nim