def test_groups(self) -> None:
dsu = DSU(5)
dsu.merge(0, 1)
dsu.merge(0, 2)
assert dsu.groups() == [[0, 1, 2], [3], [4]]
def main():
n, m = list(map(int, input().strip().split()))
tree = DSU(n)
for i in range(m):
a, b = list(map(int, input().strip().split()))
a = a - 1
b = b - 1
if a >= b:
tree.merge(a, b)
print(len(tree.groups()))
def test_initial_status(self) -> None:
dsu = DSU(5)
for i, j in combinations(range(5), 2):
assert not dsu.same(i, j)
for index in range(5):
assert dsu.size(index) == 1
assert dsu.leader(index) == index
assert dsu.groups() == [[0], [1], [2], [3], [4]]
def main():
n, m = list(map(int, input().strip().split()))
tree = DSU(n)
for _ in range(m):
a, b = list(map(int, input().strip().split()))
tree.merge(a - 1, b - 1)
result = 0
for g in tree.groups():
result = max(result, len(g))
print(result)
def main():
n, q = list(map(int, input().strip().split()))
tree = DSU(n)
for _ in range(q):
t, v1, v2 = list(map(int, input().strip().split()))
if t == 0:
tree.merge(v1, v2)
if t == 1:
if tree.same(v1, v2):
print(1)
else:
print(0)
num_of_groups = len(tree.groups())
