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huyfififi
approved these changes
Jul 2, 2025
| amount_to_num_coins[new_total] = min( | ||
| amount_to_num_coins[new_total], amount_to_num_coins[total] + 1 | ||
| ) | ||
| if math.isinf(amount_to_num_coins[amount]): |
Fuminiton
reviewed
Jul 3, 2025
| - 確かに。この観点はないといけない。 | ||
| - https://github.com/TORUS0818/leetcode/pull/42/files#r1904039471 | ||
| - Generator を使う方法。書き方の幅としてはまだまだ全然見えてないなと感じた。 | ||
| - 今回の複雑さであれば、初期値 inf でも許容する方針とした。 |
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あとは、X枚で作れる金額を列挙していき、amountと一致したらXを返すようなBFSでも実装できますね。
| if math.isinf(amount_to_num_coins[amount]): | ||
| return -1 | ||
| return amount_to_num_coins[amount] | ||
| ``` |
hroc135
reviewed
Jul 20, 2025
| ) | ||
| if math.isinf(amount_to_num_coins[amount]): | ||
| return -1 | ||
| return amount_to_num_coins[amount] |
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amount_to_num_coins[-1] と書くこともできますが、自分も amount とした方が好みです。
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322. Coin Change
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言語: Python