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  1. #include <bits/stdc++.h>
  2. #include <ext/pb_ds/assoc_container.hpp>
  3. #include <ext/pb_ds/tree_policy.hpp>
  4.  
  5. using namespace std;
  6. using namespace __gnu_pbds;
  7. using ll = long long;
  8. using ld = long double;
  9.  
  10. #define all(x) x.begin(),x.end()
  11. #define v(x) vector<x>
  12. #define nl '\n'
  13. #define fxd(x) fixed << setprecision(x)
  14. template<class t> using ordered_set = tree<t, null_type, less<t>, rb_tree_tag, tree_order_statistics_node_update>;
  15. template<class t> using ordered_multiset = tree<t, null_type, less_equal<t>, rb_tree_tag, tree_order_statistics_node_update>;
  16.  
  17.  
  18. int main()
  19. {
  20. ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
  21. string s; cin >> s;
  22. int maxlen = 0 , lencounter = 0;
  23.  
  24. for (int i = 0; i < s.length(); i++)
  25. {
  26. if(s[i] == 'A' || s[i] == 'C' ||s[i] == 'G' ||s[i] == 'T')
  27. {
  28. lencounter++;
  29. }
  30. else
  31. {
  32. if(lencounter > maxlen)
  33. {
  34. maxlen = lencounter;
  35. }
  36. lencounter = 0;
  37. }
  38. }
  39. cout << maxlen;
  40. }
Success #stdin #stdout 0s 5320KB
stdin
Standard input is empty
stdout
Standard output is empty