139. Word Break #39
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139. Word Break #39
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tokuhirat
reviewed
Aug 9, 2025
| if (words.contains(word)) { | ||
| breakable_indexes.push_back(index); | ||
| break; | ||
| } |
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自分だったら以下のような変数名にします。
for (int end = 1; end <= s.size(); ++end) {
for (int start : breakable_indexes) {
string_view sub_str = s_view.substr(start, end - start);
if (words.contains(sub_str)) {
tokuhirat
reviewed
Aug 9, 2025
| while (!index_to_check.empty()) { | ||
| int index = index_to_check.front(); | ||
| index_to_check.pop(); | ||
| for (int i = 1; i <= s.size() - index; ++i) { |
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ここの i は word_length もしくは sub_str_length かなと思いました。
skypenguins
reviewed
Aug 11, 2025
| public: | ||
| bool wordBreak(string s, vector<string>& wordDict) { | ||
| unordered_set<string> words(wordDict.begin(), wordDict.end()); | ||
| unordered_set<int> visited; |
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型で分かると言えば分かるのですが、 visited_indices の命名とかの方がよりわかりやすいと思います。
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問題文
https://leetcode.com/problems/word-break/description/