提出詳細

提出id	提出時刻	ユーザー名	問題	言語	判定状況	判定	実行時間
114890	2023-10-24 10:29:54	euommo	H	cpp	-	CE	-1

#include <bits/stdc++.h>

int main() {
  std::cin.tie(0)->sync_with_stdio(0);
  std::cin.exceptions(std::cin.failbit);

  int N;
  std::cin >> N;

  std::vector<std::string> S(N);
  for (std::string &s: S)
    std::cin >> s;

  int ans = 0;
  std::vector<std::vector<int>> dp(1 << N, std::vector<int>(N, 0));
  for (int i = 0; i < (1 << N); ++i) {
    for (int j = 0; j < N; ++j) if (i >> j & 1) {
      for (int k = 0; k < N; ++k) if (k != j and (i >> k & 1) and S[k].back() == S[j][0])
        dp[i][j] = std::max(dp[i][j], dp[i ^ (1 << j)][k]);
      dp[i][j] += (int) S[j].size();
      ans = max(ans, dp[i][j]);
    }
  }

  std::cout << ans << '\n';

  return 0;
}

-1 CE-1 CE

/var/www/judge/submit2/114890/a.cpp: In function ‘int main()’:
/var/www/judge/submit2/114890/a.cpp:21:13: error: ‘max’ was not declared in this scope
   21 |       ans = max(ans, dp[i][j]);
      |             ^~~
/var/www/judge/submit2/114890/a.cpp:21:13: note: suggested alternatives:
In file included from /usr/include/c++/11/string:52,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from /var/www/judge/submit2/114890/a.cpp:1:
/usr/include/c++/11/bits/stl_algo.h:3467:5: note:   ‘std::max’
 3467 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
In file included from /usr/include/c++/11/algorithm:64,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
                 from /var/www/judge/submit2/114890/a.cpp:1:
/usr/include/c++/11/bits/ranges_algo.h:3011:29: note:   ‘std::ranges::max’
 3011 |   inline constexpr __max_fn max{};
      |                             ^~~