結果
| 問題 |
No.2220 Range Insert & Point Mex
|
| コンテスト | |
| ユーザー |
lam6er
|
| 提出日時 | 2025-04-15 23:22:39 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 2,121 bytes |
| コンパイル時間 | 334 ms |
| コンパイル使用メモリ | 81,664 KB |
| 実行使用メモリ | 184,148 KB |
| 最終ジャッジ日時 | 2025-04-15 23:24:48 |
| 合計ジャッジ時間 | 22,561 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 35 TLE * 1 |
ソースコード
import heapq
from collections import defaultdict
def main():
import sys
input = sys.stdin.read().split()
ptr = 0
n = int(input[ptr])
ptr += 1
events = []
for _ in range(n):
l = int(input[ptr])
r = int(input[ptr+1])
a = int(input[ptr+2])
ptr +=3
events.append((l, 0, 0, a)) # add event
events.append((r+1, 0, 1, a)) # remove event
q = int(input[ptr])
ptr +=1
queries = list(map(int, input[ptr:ptr+q]))
ptr +=q
for i in range(q):
x = queries[i]
events.append((x, 1, i)) # query event
# Sort the events by position, then by type (events before queries)
events.sort(key=lambda x: (x[0], x[1]))
count = defaultdict(int)
active = set()
mex = 0
candidates = []
res = [0] * q
for event in events:
pos, typ = event[0], event[1]
if typ == 0:
# It's an add or remove event
event_type, a = event[2], event[3]
if event_type == 0:
# Add event
count[a] +=1
if count[a] == 1:
active.add(a)
if a == mex:
# Increment mex until not found
while mex in active:
mex +=1
else:
# Remove event
count[a] -=1
if count[a] == 0:
if a in active:
active.remove(a)
if a < mex:
heapq.heappush(candidates, a)
# Process candidates
while candidates:
current = candidates[0]
if current not in active:
mex = current
heapq.heappop(candidates)
else:
break
else:
# It's a query
idx = event[2]
res[idx] = mex
for num in res:
print(num)
if __name__ == "__main__":
main()
lam6er