結果

問題 No.1230 Hall_and_me
ユーザー naribow
提出日時 2020-09-24 22:41:43
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 2 ms / 2,000 ms
コード長 988 bytes
コンパイル時間 1,736 ms
コンパイル使用メモリ 196,264 KB
最終ジャッジ日時 2025-01-14 20:09:26
ジャッジサーバーID
(参考情報)
judge3 / judge5
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 2
other AC * 36
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<<(long double) [with _CharT = char; _Traits = std::char_traits<char>]’,
    inlined from ‘int main()’ at main.cpp:35:13:
/usr/include/c++/13/ostream:235:25: warning: ‘ans’ may be used uninitialized [-Wmaybe-uninitialized]
  235 |       { return _M_insert(__f); }
      |                ~~~~~~~~~^~~~~
main.cpp: In function ‘int main()’:
main.cpp:20:13: note: ‘ans’ was declared here
   20 |     ldouble ans;
      |             ^~~

ソースコード

diff #

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const double pi=3.141592653589793;
typedef unsigned long long ull;
typedef long double ldouble;
const ll INF=1e18;
#define rep(i, n) for(ll i = 0; i < (ll)(n); i++)
#define rep2(i, s, n) for (ll i = (s); i < (ll)(n); i++)
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }


int main(){
    // 小数点以下第15桁まで表示させる
    cout.precision(15);
    cout << fixed;
    vector<int> p(3);
    int count = 0;
    ldouble ans;
    rep(i, 3) {
        cin >> p[i];
        if(p[i] == 0) count++;
    }
    sort(p.begin(), p.end());
    if(count == 0) {
        ans = (ldouble)(p[1] + p[2]) / (ldouble) (p[0] + p[1] + p[2]);
    }
    else if(count == 1) {
        ans = (ldouble)1;
    }
    else if(count == 2) {
        ans = (ldouble) 1;
    }
    cout << ans << endl;
}
0