code
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Exception("found negative cycle.")
bfs01(self, src=0)
deque([src])
q.popleft()
items()
q.append(v)
q.appendleft(v)
find_ancestors(self)
range(max(self.depth)
bit_length()
ancestors.append([ancestors[-1][u] for u in ancestors[-1]])
find_dist(self, u, v)
self.__find_lca(u, v)
__find_lca(self, u, v)
range(d.bit_length()
du.bit_length()
init_dsu(self)
union (union-find)
list(range(n)
find(self, u)
self.find(self.parent[u])
unite(self, u, v)
self.find(u)
self.find(v)
max(self.rank[u], self.rank[v] + 1)
same(self, u, v)
self.find(u)
self.find(v)
scc(self)
self.__class__(n)
range(n)
gg.add_edge(v, u)
dfs(u)
dfs(v)
q.append(u)
rev_dfs(u, r)
rev_dfs(v, r)
range(n)
dfs(u)
rev_dfs(u, r)
kruskal(self)
self.__class__(n)
uf.init_dsu()
range(n)
items()
self.__class__(n)
uf.same(u, v)
uf.unite(u, v)
g.add_edge(u, v, weight=w)
prim(self, src=0, return_parent=False)
self.__class__(n)
heappop(q)
g.add_edge(w, u, weight=d)
items()
heappush(q, (e.weight, (u, v)
boruvka(self)
self.__class__(n)
uf.init_dsu()
self.__class__(n)
dfs(u)
return (inf, (None, None)
items()
uf.same(u, v)
cand.append(dfs(v)
cand.append((e.weight, (u, v)
sorted(cand)
len(set(uf.parent)
range(n)
edges.append(dfs(u)
uf.same(u, v)
g.add_edge(u, v, weight=w)
uf.unite(u, v)
range(n)
uf.find(u)
tsp(self)
triangle_area(p0, p1, p2, signed=False)
abs(x1 * y2 - x2 * y1)
intersect(cls, seg1, seg2)
cls.triangle_area(p1, p2, p3, signed=True)
cls.triangle_area(p1, p2, p4, signed=True)
cls.triangle_area(p3, p4, p1, signed=True)
cls.triangle_area(p3, p4, p2, signed=True)
return (t1 * t2 < 0)
cumxor(a)
reduce(xor, a, 0)
cumor(a)
reduce(or_, a, 0)
bit_count(n)
a()
map(int, sys.stdin.read()
split()
print(h1 - h2)
d()
to_minuites(x)
divmod(x, 100)
to_hmform(x)
divmod(x, 60)
int(sys.stdin.readline()
rstrip()
range(n)