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【算法题】1023. 驼峰式匹配

2023-04-13  本文已影响0人  程序员小2

题目:

如果我们可以将小写字母插入模式串 pattern 得到待查询项 query,那么待查询项与给定模式串匹配。(我们可以在任何位置插入每个字符,也可以插入 0 个字符。)

给定待查询列表 queries,和模式串 pattern,返回由布尔值组成的答案列表 answer。只有在待查项 queries[i] 与模式串 pattern 匹配时, answer[i] 才为 true,否则为 false。

示例 1:

输入:queries = ["FooBar","FooBarTest","FootBall","FrameBuffer","ForceFeedBack"], pattern = "FB"
输出:[true,false,true,true,false]
示例:
"FooBar" 可以这样生成:"F" + "oo" + "B" + "ar"。
"FootBall" 可以这样生成:"F" + "oot" + "B" + "all".
"FrameBuffer" 可以这样生成:"F" + "rame" + "B" + "uffer".
示例 2:

输入:queries = ["FooBar","FooBarTest","FootBall","FrameBuffer","ForceFeedBack"], pattern = "FoBa"
输出:[true,false,true,false,false]
解释:
"FooBar" 可以这样生成:"Fo" + "o" + "Ba" + "r".
"FootBall" 可以这样生成:"Fo" + "ot" + "Ba" + "ll".
示例 3:

输出:queries = ["FooBar","FooBarTest","FootBall","FrameBuffer","ForceFeedBack"], pattern = "FoBaT"
输入:[false,true,false,false,false]
解释:
"FooBarTest" 可以这样生成:"Fo" + "o" + "Ba" + "r" + "T" + "est".

提示:

1 <= queries.length <= 100
1 <= queries[i].length <= 100
1 <= pattern.length <= 100
所有字符串都仅由大写和小写英文字母组成。

java代码 :

class Solution {

    public List<Boolean> camelMatch(String[] queries, String pattern) {
        List<Boolean> ans = new ArrayList<>();
        char[] cs = pattern.toCharArray();
        int len = cs.length;
        for (int i = 0; i < queries.length; i++) {
            int p = 0;
            boolean cur = true;
            for (char c : queries[i].toCharArray()) {
                if (p < len && c == cs[p]) {
                    p++;
                } else if (c >= 'A' && c <= 'Z') {
                    cur = false;//大写字母不能跳
                    break;
                }
            }
            ans.add(cur ? p == len : cur);//所有的pattern都要检查到
        }
        return ans;
    }

}

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