#include <bits/stdc++.h> using namespace std; int longest_laugh(string s) { int N = s.size(); int ans = 0; int cur = 0; if (s[0] == 'a' || s[0] == 'h') cur++, ans++; for (int i = 1; i < N; i++) { if (s[i] == 'a' || s[i] == 'h') { if ((s[i] == 'a' && s[i - 1] != 'h') || (s[i] == 'h' && s[i - 1] != 'a')) { cur = 1; } else { cur++; } ans = max(ans, cur); } else { cur = 0; } } return ans; }

laugh.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
laugh_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~