Update RemoveDuplicateLetters-leetcode.cpp

990a2c4e · cosmicing · 1001c39e · 990a2c4e
隐藏空白更改
内联并排

Showing with 1 addition and 1 deletion

13-Stack/21-Classic/12-removeDuplicateLetters/RemoveDuplicateLetters-leetcode.cpp ...emoveDuplicateLetters/RemoveDuplicateLetters-leetcode.cpp +1 -1

未找到文件。
--- a/13-Stack/21-Classic/12-removeDuplicateLetters/RemoveDuplicateLetters-leetcode.cpp
+++ b/13-Stack/21-Classic/12-removeDuplicateLetters/RemoveDuplicateLetters-leetcode.cpp
@@ -12,7 +12,7 @@ public:
    string removeDuplicateLetters(string s) {
        vector<int> vis(26), num(26);
        for (char ch : s) {
-            num[ch - 'a']++;         //1) num 记录了字符串中字母出现的次数
+            num[ch - 'a']++;         //1) num 记录了字符串中字母出现的次数;这个就是哈希表的应用；
        }

        string stk;