結果

問題 No.105 arcの六角ボルト
ユーザー k
提出日時 2020-09-28 03:47:35
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 40 ms / 5,000 ms
コード長 533 bytes
コンパイル時間 1,728 ms
コンパイル使用メモリ 194,092 KB
最終ジャッジ日時 2025-01-14 23:11:21
ジャッジサーバーID
（参考情報） 		judge1 / judge1
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ファイルパターン 結果
other AC * 1
権限があれば一括ダウンロードができます
コンパイルメッセージ
In file included from /usr/include/c++/13/istream:41,
                 from /usr/include/c++/13/sstream:40,
                 from /usr/include/c++/13/complex:45,
                 from /usr/include/c++/13/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:127,
                 from main.cpp:1:
In member function ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(double) [with _CharT = char; _Traits = std::char_traits<char>]’,
    inlined from ‘int main()’ at main.cpp:26:42:
/usr/include/c++/13/ostream:223:25: warning: ‘ret’ may be used uninitialized [-Wmaybe-uninitialized]
  223 |       { return _M_insert(__f); }
      |                ~~~~~~~~~^~~~~
main.cpp: In function ‘int main()’:
main.cpp:17:12: note: ‘ret’ was declared here
   17 |     double ret;
      |            ^~~

ソースコード

diff #
プレゼンテーションモードにする

#include <bits/stdc++.h>
using namespace std;
#define REP(i,n) for(int i=0; i<(int)(n); i++)
const double PI = acos(-1);
const double EPS = 1e-3;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  int T;
  cin >> T;
  while (T--) {
    double ret;
    REP (i, 6) {
      double x, y;
      cin >> x >> y;
      double theta = atan2(y, x);
      double tmp = 180 * theta / PI;
      if (0-EPS <= tmp  && tmp <= 50+EPS)
        ret = tmp;
    }
    cout << fixed << setprecision(12) << ret << endl;
  }
  
  return 0;
}
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