leetcode test 5
[INFO leetcode_cli::plugins::leetcode] Sending code to judge...
thread 'main' panicked at 'submit succcessfully, parse question_id to i32 failed: ParseIntError { kind: Empty }', src/cache/models.rs:318:34
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

class Solution {
 public:
 // 1. 中心扩展法
 tuple<int, int, int> expandPalindrome(string &s, int left, int right) {
 int k = 0;
 while (left >= 0 && right < s.size()) {
 if (s[left] == s[right]) {
 left--;
 right++;
 k++;
 } else {
 break;
 }
 }
 return make_tuple(k, left, right);
 }
 string longestPalindrome(string s) {
 if (s.size() == 0) return s;
 int max_length = 1;
 int l = 0, r = 0;
 for (size_t i = 0; i < s.size(); i++) {
 int k_o = 0, k_e = 0;
 int l_o = 0, l_e = 0;
 int r_o = 0, r_e = 0;
 tie(k_e, l_e, r_e) = expandPalindrome(s, i - 1, i + 1);
 tie(k_o, l_o, r_o) = expandPalindrome(s, i, i + 1);
 if (k_e * 2 + 1 > max_length) {
 max_length = k_e * 2 + 1;
 l = l_e;
 r = r_e;
 }
 if (k_o * 2 > max_length) {
 max_length = k_o * 2;
 l = l_o;
 r = r_o;
 }
 }
 return s.substr(l + 1, r);
 }
};