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22 changes: 0 additions & 22 deletions atcoder/dsu.py
Original file line number Diff line number Diff line change
Expand Up @@ -59,25 +59,3 @@ def groups(self) -> typing.List[typing.List[int]]:
result[leader_buf[i]].append(i)

return list(filter(lambda r: r, result))


# https://atcoder.jp/contests/practice2/tasks/practice2_a
def main() -> None:
import sys

n, q = map(int, sys.stdin.readline().split())
dsu = DSU(n)

for _ in range(q):
t, u, v = map(int, sys.stdin.readline().split())
if t == 0:
dsu.merge(u, v)
if t == 1:
if dsu.same(u, v):
print(1)
else:
print(0)


if __name__ == '__main__':
main()
23 changes: 0 additions & 23 deletions atcoder/fenwicktree.py
Original file line number Diff line number Diff line change
Expand Up @@ -28,26 +28,3 @@ def _sum(self, r: int) -> typing.Any:
r -= r & -r

return s


# https://atcoder.jp/contests/practice2/tasks/practice2_b
def main() -> None:
import sys

n, q = map(int, sys.stdin.readline().split())
fenwick_tree = FenwickTree(n)

a = map(int, sys.stdin.readline().split())
for i, ai in enumerate(a):
fenwick_tree.add(i, ai)

for _ in range(q):
t, x, y = map(int, sys.stdin.readline().split())
if t == 0:
fenwick_tree.add(x, y)
if t == 1:
print(fenwick_tree.sum(x, y))


if __name__ == '__main__':
main()
24 changes: 24 additions & 0 deletions example/dsu_practice.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,24 @@
# https://atcoder.jp/contests/practice2/tasks/practice2_a

from atcoder.dsu import DSU


def main() -> None:
import sys

n, q = map(int, sys.stdin.readline().split())
dsu = DSU(n)

for _ in range(q):
t, u, v = map(int, sys.stdin.readline().split())
if t == 0:
dsu.merge(u, v)
if t == 1:
if dsu.same(u, v):
print(1)
else:
print(0)


if __name__ == '__main__':
main()
25 changes: 25 additions & 0 deletions example/fenwick_practice.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,25 @@
# https://atcoder.jp/contests/practice2/tasks/practice2_b

from atcoder.fenwicktree import FenwickTree


def main() -> None:
import sys

n, q = map(int, sys.stdin.readline().split())
fenwick_tree = FenwickTree(n)

a = map(int, sys.stdin.readline().split())
for i, ai in enumerate(a):
fenwick_tree.add(i, ai)

for _ in range(q):
t, x, y = map(int, sys.stdin.readline().split())
if t == 0:
fenwick_tree.add(x, y)
if t == 1:
print(fenwick_tree.sum(x, y))


if __name__ == '__main__':
main()