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33<snippet>
<content><![CDATA[
//cycled finding in floyd grapg [hanging tree like structure]
vi brr(n), vis(n);
int ans = 0;
for (int i = 0; i < n; i++) {
if (!vis[i]) {
int j = i;
int c = 0;
si s;
while (!vis[j]) {
s.insert(j);
vis[j] = 1;
brr[j] = c;
j = arr[j];
c++;
}
wd(c, j, brr[j], i);
if (s.find(j) != s.end())
ans += c - brr[j];
}
}
]]></content>
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<tabTrigger>floyd cycles hanging</tabTrigger>
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<scope>source.c++</scope>
</snippet>