結果
| 問題 | No.2738 CPC To F | 
| コンテスト | |
| ユーザー |  gew1fw | 
| 提出日時 | 2025-06-12 19:53:51 | 
| 言語 | PyPy3 (7.3.15) | 
| 結果 | 
                                WA
                                 
                             | 
| 実行時間 | - | 
| コード長 | 924 bytes | 
| コンパイル時間 | 1,379 ms | 
| コンパイル使用メモリ | 81,408 KB | 
| 実行使用メモリ | 117,544 KB | 
| 最終ジャッジ日時 | 2025-06-12 19:54:52 | 
| 合計ジャッジ時間 | 2,363 ms | 
| ジャッジサーバーID (参考情報) | judge3 / judge4 | 
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| ファイルパターン | 結果 | 
|---|---|
| sample | AC * 2 | 
| other | WA * 22 | 
ソースコード
n = int(input())
s = input()
# Collect positions of CPC in original CPCTF substrings
original_cpc_positions = set()
for i in range(n - 4):
    if s[i] == 'C' and s[i+1] == 'P' and s[i+2] == 'C' and s[i+3] == 'T' and s[i+4] == 'F':
        # Mark the CPC part (i, i+1, i+2)
        original_cpc_positions.add(i)
        original_cpc_positions.add(i+1)
        original_cpc_positions.add(i+2)
count_original = len(original_cpc_positions) // 3  # Each CPCTF has one CPC
count_operable = 0
for i in range(2, n - 1):
    # Check if the current CPC is CPC and followed by T
    if s[i-2] == 'C' and s[i-1] == 'P' and s[i] == 'C' and s[i+1] == 'T':
        # Check if any of the positions i-2, i-1, i are in original_cpc_positions
        if (i-2 not in original_cpc_positions) and (i-1 not in original_cpc_positions) and (i not in original_cpc_positions):
            count_operable += 1
print(count_original + count_operable)
            
            
            
        