问题:
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:
输入:queries = ["FooBar","FooBarTest","FootBall","FrameBuffer","ForceFeedBack"], pattern = "FoBaT"
输出:[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。
思想:
使得queries中字符串与pattern相匹配只需要注意pattren字符数以及字符顺序相匹配即可。如果queries中含有其它大写字符直接输出false.
代码:
class Solution {public List<Boolean> camelMatch(String[] queries, String pattern) {List<Boolean> ans = new LinkedList<>();for(String query: queries){Boolean b = check(query,pattern);ans.add(b);}return ans;}public Boolean check(String query, String pattern){int index = 0;for(int i = 0; i < query.length(); i++){if(index < pattern.length() && query.charAt(i) == pattern.charAt(index)){index++;}else if(query.charAt(i) >='A' && query.charAt(i) <= 'Z'){return false;}}return index == pattern.length();}
}