結果
| 問題 | 
                            No.2779 Don't make Pair
                             | 
                    
| コンテスト | |
| ユーザー | 
                             | 
                    
| 提出日時 | 2024-06-07 22:54:12 | 
| 言語 | Python3  (3.13.1 + numpy 2.2.1 + scipy 1.14.1)  | 
                    
| 結果 | 
                             
                                WA
                                 
                             
                            
                         | 
                    
| 実行時間 | - | 
| コード長 | 1,864 bytes | 
| コンパイル時間 | 324 ms | 
| コンパイル使用メモリ | 12,800 KB | 
| 実行使用メモリ | 43,036 KB | 
| 最終ジャッジ日時 | 2024-12-26 09:27:03 | 
| 合計ジャッジ時間 | 54,236 ms | 
| 
                            ジャッジサーバーID (参考情報)  | 
                        judge3 / judge2 | 
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| ファイルパターン | 結果 | 
|---|---|
| sample | AC * 4 WA * 1 | 
| other | AC * 6 WA * 1 TLE * 17 | 
ソースコード
import os, sys
import math, decimal, queue, heapq, bisect, itertools, functools, collections, string
from bisect import bisect, bisect_left
from collections import defaultdict, OrderedDict, deque, Counter
from functools import cmp_to_key, lru_cache, reduce
from heapq import heapify, heappush, heappushpop, heappop, heapreplace, nlargest, nsmallest
from itertools import accumulate, chain, combinations, combinations_with_replacement, compress, count, cycle, dropwhile, filterfalse, groupby, islice, permutations, product, repeat, starmap, takewhile, tee, zip_longest
from math import gcd, factorial, isqrt, comb, perm, prod, inf
from queue import Queue, PriorityQueue, LifoQueue
from string import ascii_letters, ascii_lowercase, ascii_uppercase, digits, hexdigits, octdigits
LOCAL = sys.argv[0] if '4a' in sys.argv[0] else None
P = lambda *p: [print(i, end='	') for i in p] if LOCAL else None
PI = lambda *p: print(' '.join(map(str, p))) or None
PII = lambda X: [PI(*row) for row in X]
sys.stdin = open(os.path.join(os.getcwd(), 'a1.txt'), 'r') if LOCAL else sys.stdin
I = lambda: [int(a) for l in sys.stdin for a in l.strip().split()]
S = lambda: [a for l in sys.stdin for a in l.strip().split()]
IM = lambda: [[int(a) for a in l.split()] for l in sys.stdin]
SM = lambda: [[a for a in l.split()] for l in sys.stdin]
az, AZ, mod = ascii_lowercase, ascii_uppercase, 1_000_000_007
A = IM()
# P(A)
def solution(A):
    N = A[0][0]
    B = A[1]
    # P(N, B)
    l, r = set(), set()
    out = 0
    res = []
    c = Counter()
    d = Counter(B)
    for i, num in enumerate(B):
        # P(c, d, '\n')
        c[num] += 1
        d[num] -= 1
        x = c.most_common()[0][1]
        y = d.most_common()[0][1]
        # P(x, y, c, d, '\n')
        if x <= 1 and y <= 1:
            out += 1
            res += [i + 1]
    print(out)
    PI(*res)
solution(A)