<style>
/* 頁面整體設定 */
html, body, .ui-content {
background: #2C2C2C;
color: #00FFD5;
}
/* tag顏色設定 */
.markdown-body h6 {
font-size: .85em;
color: #A5FFE5;
-webkit-animation: discolor 5s linear infinite,
glint 2s ease infinite;
animation: discolor 5s linear infinite,
glint 2s ease infinite;
/*animation: discolor 5s linear infinite,
glint 2s ease infinite;*/
}
/* 設定右上角留言按鈕 */
#comment-app .open-comments {
background: transparent;
}
.btn-default {
background: transparent;
border-color: #A5FFE599;
-webkit-animation: discolor 5s linear infinite,
glint 2s ease infinite;
animation: discolor 5s linear infinite,
glint 2s ease infinite;
}
.btn-default:hover {
background: transparent;
}
.ui-comment-app .open-comments .btn.ui-open-comments {
color: #A5FFE599;
}
.ui-comment-app .open-comments .btn.ui-open-comments:hover {
color: #A5FFE5;
}
/* 設置愛心、收藏、小鈴鐺按鈕 */
.community-button {
color: #A5FFE580;
-webkit-animation: discolor 5s linear infinite,
glint 2s ease infinite;
animation: discolor 5s linear infinite,
glint 2s ease infinite;
}
.community-button:hover {
color: #A5FFE5;
background: transparent;
}
/* 設定 code 模板 */
.markdown-body:not(.next-editor) pre {
padding: 16px;
background-color: #404040;
}
.markdown-body code,
.markdown-body tt {
background-color: #ffffff36;
}
.markdown-body .highlight pre,
.markdown-body pre {
color: #ddd;
background-color: #00000080;
}
.hljs-tag {
color: #ddd;
}
.token.operator {
background-color: transparent;
}
.token.atrule, .token.attr-value, .token.keyword {
color: #00FFD5;
}

.token.function, .token.class-name{
color: #6E86FF;
}
.token.number, .token.boolean{
color: #87C0FF
}
.token.operator{
color: #C87DFA
}
.token.comment, .token.punctuation{
color: #8171AF
}
.markdown-body pre code .code {
color: #F0D8FF;
}
.token.selector, .token.attr-name, .token.string, .token.char, .token.builtin, .token.inserted {
color: #8BDDFF;
}
/* h1, h2 樣式 */
.markdown-body h1,
.markdown-body h2 {
border-bottom-color: #ffffff80;
text-shadow: 3px 3px 3px #009B67;
}

/* 設定小目錄的背景顏色 */
.ui-toc-dropdown {
background-color: #2C2C2C;
}
/* 設定行動裝置中，小目錄按鈕 */
.ui-toc-label.btn {
background: linear-gradient(180deg, #2BE8CF60 0%, #2B83E860 100%);
color: #ffffff90;
}
.ui-toc-label.btn:hover {
background: linear-gradient(180deg, #2BE8CF90 0%, #2B83E890 100%);
color: #ffffff;
}
/* 設定小目錄內連結 */
.ui-toc-dropdown .nav>li>a,
.toc-menu>a {
color: #D4F9FF;
font-weight: bold;
}
.ui-toc-dropdown .nav>li>a:focus,
.ui-toc-dropdown .nav>li>a:hover {
color: #00FFD5;
border-left: 1px solid #00FFD5;
}

.ui-toc-dropdown .nav>.active:focus>a,
.ui-toc-dropdown .nav>.active:hover>a,
.ui-toc-dropdown .nav>.active>a {
color: #00FFD5;
border-left: 1px solid #00FFD5;
/* -webkit-animation: discolor 5s linear infinite,
glint 2s ease infinite;
animation: discolor 5s linear infinite,
glint 2s ease infinite; */
}

.toc-menu>a:focus,
.toc-menu>a:hover {
color: #00FFD5;
}
/* 回到最上面的按鈕 */
.markdown-body a > .fa-chevron-up {
position: fixed;
bottom: 20px;
right: 20px;
padding: 4px;
border-radius: 4px;
color: #fff;
background: linear-gradient(180deg, #2BE8CF60 0%, #2B83E860 100%);
}
.markdown-body a:hover > .fa {
background: linear-gradient(180deg, #2BE8CF95 0%, #2B83E895 100%);
-webkit-animation: discolor 5s linear infinite,
glint 2s ease infinite;
animation: discolor 5s linear infinite,
glint 2s ease infinite;
}
/* 右邊滾動軸 */
::-webkit-scrollbar {
width: 10px;
}
::-webkit-scrollbar-track {
background: transparent;
}
::-webkit-scrollbar-thumb {
background: linear-gradient(180deg, #2BE8CF60 0%, #2B83E860 100%);
border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
background: linear-gradient(180deg, #2BE8CF95 0%, #2B83E895 100%);
}
/* 設定連結 */
a,
.open-files-container li.selected a {
color: #89FFF8;

}
a:hover,
.open-files-container li.selected a:hover {
color: #89FFF8;
}
/* 上面的名字顏色修改 */
.text-gray-900 {
--tw-text-opacity: 1;
color: #95FFFF;
animation: discolor 5s linear infinite,
glint 2s ease infinite;
}

/* 下面的名字顏色修改 */
/* 這個會修改到最下面的HackMD 但不會閃爍*/
.footer a {
color: #95FFFF;
}
.text-black-brand {
--tw-text-opacity: 1;
animation: discolor 5s linear infinite,
glint 2s ease infinite;
}
/* 動畫 */
@keyframes discolor {
0%, 100% {filter: hue-rotate(0);}
50% {filter: hue-rotate(180deg);}
}
</style>

###### tags: `LeetCode`
# 5. Longest Palindromic Substring

## 題目
<a href = "https://leetcode.com/problems/longest-palindromic-substring/description/?envType=daily-question&envId=2023-10-27"><i class=" fa fa-bug"></i> 題目連結</a>

## 程式碼

class Solution {
public:
    string longestPalindrome(string s) {
        n = s.size();
        string ans = "";
        for(int i = 0;i < n;i ++){
            //奇數個字母的字串
            string tmp = FindPal(s, i, i);
            if(tmp.size() > ans.size())
                ans = tmp;
            //偶數個字母的字串
            tmp = FindPal(s, i, i + 1);
            if(tmp.size() > ans.size())
                ans = tmp;
        }
        return ans;
    }
private:
    int n;
    //找Palindrome
    string FindPal(string &s, int l, int r){
        string re = "";
        while(l >= 0 && r < n){
            if(s[l] != s[r])
                break;
            l --, r ++;
        }
        l ++;
        re = s.substr(l, r - l);
        return re;
    }
};

## DATE

2023/10/27