結果
問題 | No.955 ax^2+bx+c=0 |
ユーザー | iiljj |
提出日時 | 2019-12-18 00:40:13 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 6,222 bytes |
コンパイル時間 | 2,310 ms |
コンパイル使用メモリ | 181,100 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-07-06 23:58:36 |
合計ジャッジ時間 | 5,245 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,940 KB |
testcase_10 | AC | 2 ms
6,944 KB |
testcase_11 | AC | 2 ms
6,940 KB |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | AC | 2 ms
6,944 KB |
testcase_14 | AC | 2 ms
6,940 KB |
testcase_15 | AC | 2 ms
6,940 KB |
testcase_16 | AC | 2 ms
6,944 KB |
testcase_17 | AC | 2 ms
6,944 KB |
testcase_18 | AC | 2 ms
6,944 KB |
testcase_19 | AC | 1 ms
6,944 KB |
testcase_20 | AC | 2 ms
6,940 KB |
testcase_21 | AC | 1 ms
6,940 KB |
testcase_22 | AC | 1 ms
6,944 KB |
testcase_23 | AC | 2 ms
6,940 KB |
testcase_24 | AC | 2 ms
6,940 KB |
testcase_25 | AC | 2 ms
6,940 KB |
testcase_26 | AC | 1 ms
6,940 KB |
testcase_27 | AC | 1 ms
6,944 KB |
testcase_28 | AC | 2 ms
6,940 KB |
testcase_29 | AC | 2 ms
6,944 KB |
testcase_30 | AC | 2 ms
6,940 KB |
testcase_31 | AC | 2 ms
6,940 KB |
testcase_32 | AC | 2 ms
6,940 KB |
testcase_33 | AC | 2 ms
6,944 KB |
testcase_34 | WA | - |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | WA | - |
testcase_38 | WA | - |
testcase_39 | WA | - |
testcase_40 | WA | - |
testcase_41 | WA | - |
testcase_42 | WA | - |
testcase_43 | WA | - |
testcase_44 | WA | - |
testcase_45 | WA | - |
testcase_46 | WA | - |
testcase_47 | WA | - |
testcase_48 | WA | - |
testcase_49 | WA | - |
testcase_50 | WA | - |
testcase_51 | WA | - |
testcase_52 | WA | - |
testcase_53 | WA | - |
testcase_54 | WA | - |
testcase_55 | WA | - |
testcase_56 | WA | - |
testcase_57 | WA | - |
testcase_58 | AC | 2 ms
6,944 KB |
testcase_59 | WA | - |
testcase_60 | AC | 2 ms
6,940 KB |
testcase_61 | AC | 2 ms
6,940 KB |
testcase_62 | AC | 1 ms
6,944 KB |
testcase_63 | WA | - |
testcase_64 | AC | 2 ms
6,940 KB |
testcase_65 | WA | - |
testcase_66 | AC | 2 ms
6,940 KB |
testcase_67 | AC | 2 ms
6,940 KB |
testcase_68 | AC | 2 ms
6,940 KB |
testcase_69 | AC | 2 ms
6,940 KB |
testcase_70 | WA | - |
testcase_71 | AC | 1 ms
6,940 KB |
testcase_72 | AC | 2 ms
6,944 KB |
testcase_73 | AC | 2 ms
6,944 KB |
testcase_74 | AC | 2 ms
6,944 KB |
testcase_75 | AC | 1 ms
6,944 KB |
testcase_76 | AC | 2 ms
6,940 KB |
testcase_77 | WA | - |
testcase_78 | WA | - |
testcase_79 | WA | - |
testcase_80 | AC | 2 ms
6,940 KB |
testcase_81 | AC | 2 ms
6,940 KB |
testcase_82 | AC | 2 ms
6,940 KB |
testcase_83 | AC | 2 ms
6,944 KB |
testcase_84 | AC | 2 ms
6,944 KB |
testcase_85 | AC | 2 ms
6,944 KB |
testcase_86 | AC | 2 ms
6,944 KB |
testcase_87 | AC | 2 ms
6,944 KB |
testcase_88 | AC | 2 ms
6,940 KB |
testcase_89 | AC | 2 ms
6,944 KB |
testcase_90 | AC | 2 ms
6,940 KB |
testcase_91 | AC | 2 ms
6,944 KB |
testcase_92 | AC | 2 ms
6,944 KB |
testcase_93 | AC | 2 ms
6,940 KB |
testcase_94 | AC | 2 ms
6,944 KB |
testcase_95 | AC | 1 ms
6,944 KB |
testcase_96 | AC | 2 ms
6,940 KB |
testcase_97 | AC | 1 ms
6,944 KB |
testcase_98 | AC | 2 ms
6,940 KB |
testcase_99 | AC | 2 ms
6,944 KB |
testcase_100 | AC | 2 ms
6,940 KB |
testcase_101 | AC | 2 ms
6,940 KB |
testcase_102 | AC | 2 ms
6,940 KB |
testcase_103 | AC | 2 ms
6,940 KB |
testcase_104 | AC | 2 ms
6,940 KB |
testcase_105 | AC | 2 ms
6,940 KB |
testcase_106 | AC | 2 ms
6,940 KB |
testcase_107 | AC | 2 ms
6,944 KB |
testcase_108 | AC | 2 ms
6,940 KB |
testcase_109 | AC | 2 ms
6,940 KB |
testcase_110 | AC | 2 ms
6,944 KB |
testcase_111 | AC | 1 ms
6,940 KB |
testcase_112 | AC | 2 ms
6,940 KB |
testcase_113 | AC | 2 ms
6,944 KB |
testcase_114 | AC | 1 ms
6,944 KB |
testcase_115 | AC | 1 ms
6,944 KB |
testcase_116 | AC | 2 ms
6,944 KB |
testcase_117 | AC | 2 ms
6,940 KB |
testcase_118 | AC | 2 ms
6,940 KB |
testcase_119 | AC | 1 ms
6,940 KB |
testcase_120 | AC | 2 ms
6,944 KB |
testcase_121 | AC | 1 ms
6,940 KB |
testcase_122 | AC | 2 ms
6,944 KB |
testcase_123 | AC | 2 ms
6,944 KB |
testcase_124 | WA | - |
ソースコード
/* #region Head */ #pragma GCC optimize("Ofast") #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native") #include <bits/stdc++.h> using namespace std; using ll = long long; using ull = unsigned long long; using dl = double long; using pll = pair<ll, ll>; using vll = vector<ll>; using vvll = vector<vll>; using vd = vector<double>; using vvd = vector<vd>; using vs = vector<string>; using vvs = vector<vs>; #define REP(i, m, n) for (ll i = (m), i##_len = (ll)(n); i < i##_len; ++(i)) #define REPM(i, m, n) for (ll i = (m), i##_max = (ll)(n); i <= i##_max; ++(i)) #define REPR(i, m, n) for (ll i = (m), i##_min = (ll)(n); i >= i##_min; --(i)) #define REPD(i, m, n, d) for (ll i = (m), i##_len = (ll)(n); i < i##_len; i += (d)) #define REPMD(i, m, n, d) for (ll i = (m), i##_max = (ll)(n); i <= i##_max; i += (d)) #define REPI(itr, ds) for (auto itr = ds.begin(); itr != ds.end(); itr++) #define ALL(x) begin(x), end(x) #define SIZE(x) ((ll)(x).size()) constexpr ll INF = 1'010'000'000'000'000'017LL; constexpr ll MOD = 1'000'000'007LL; // 1e9 + 7 constexpr double EPS = 1e-12; constexpr double PI = 3.14159265358979323846; // vector入力 template <typename T> istream &operator>>(istream &is, vector<T> &vec) { for (T &x : vec) is >> x; return is; } // vector出力 template <typename T> ostream &operator<<(ostream &os, vector<T> &vec) { ll len = SIZE(vec); os << "{"; for (int i = 0; i < len; i++) os << vec[i] << (i == len - 1 ? "" : ", "); os << "}"; return os; } // pair入力 template <typename T, typename U> istream &operator>>(istream &is, pair<T, U> &pair_var) { is >> pair_var.first >> pair_var.second; return is; } // pair出力 template <typename T, typename U> ostream &operator<<(ostream &os, pair<T, U> &pair_var) { os << "(" << pair_var.first << ", " << pair_var.second << ")"; return os; } // map出力 template <typename T, typename U> ostream &operator<<(ostream &os, map<T, U> &map_var) { os << "{"; REPI(itr, map_var) { os << *itr; itr++; if (itr != map_var.end()) os << ", "; itr--; } os << "}"; return os; } // set 出力 template <typename T> ostream &operator<<(ostream &os, set<T> &set_var) { os << "{"; REPI(itr, set_var) { os << *itr; itr++; if (itr != set_var.end()) os << ", "; itr--; } os << "}"; return os; } // dump #define DUMPOUT cerr void dump_func() { DUMPOUT << endl; } template <class Head, class... Tail> void dump_func(Head &&head, Tail &&... tail) { DUMPOUT << head; if (sizeof...(Tail) > 0) { DUMPOUT << ", "; } dump_func(move(tail)...); } // _max の終端. template <class Head> ll _max(Head &&head) { return head; } // 最大値を求める.max({}) の代わり.これにしないと vscode が壊れる. template <class Head, class... Tail> ll _max(Head &&head, Tail &&... tail) { return max((ll)head, _max((tail)...)); } // _min の終端. template <class Head> ll _min(Head &&head) { return head; } // 最小値を求める.min({}) の代わり.これにしないと vscode が壊れる. template <class Head, class... Tail> ll _min(Head &&head, Tail &&... tail) { return min((ll)head, _min((tail)...)); } // chmax (更新「される」かもしれない値が前) template <typename T, typename U, typename Comp = less<>> bool chmax(T &xmax, const U &x, Comp comp = {}) { if (comp(xmax, x)) { xmax = x; return true; } return false; } // chmin (更新「される」かもしれない値が前) template <typename T, typename U, typename Comp = less<>> bool chmin(T &xmin, const U &x, Comp comp = {}) { if (comp(x, xmin)) { xmin = x; return true; } return false; } // container 内の最初の element のインデックスを探す template <class Container> ll indexof(const Container &container, const typename Container::value_type &element) { auto iter = find(container.begin(), container.end(), element); size_t index = distance(container.begin(), iter); if (index == container.size()) { index = -1; } return index; } // ローカル用 #define DEBUG_ #ifdef DEBUG_ #define DEB #define dump(...) \ DUMPOUT << " " << string(#__VA_ARGS__) << ": " \ << "[" << to_string(__LINE__) << ":" << __FUNCTION__ << "]" \ << endl \ << " ", \ dump_func(__VA_ARGS__) #else #define DEB if (false) #define dump(...) #endif struct AtCoderInitialize { static constexpr int IOS_PREC = 15; static constexpr bool AUTOFLUSH = false; AtCoderInitialize() { ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr); cout << fixed << setprecision(IOS_PREC); if (AUTOFLUSH) cout << unitbuf; } } ATCODER_INITIALIZE; /* #endregion */ /** 係数a, b, cが整数の方程式ax^2+bx+c=0の実数解が有限個か判定し、有限個ならば個数と解を、無限個ならば-1を出力してください。 */ void solve() { dl a, b, c; cin >> a >> b >> c; if (a == 0) // 1次方程式 { if (b == 0) if (c == 0) cout << -1 << endl; else cout << 0 << endl; else if (c == 0) cout << 1 << endl << 0 << endl; else cout << 1 << endl << -c / b << endl; } else { // 2次方程式 dl d = b * b - 4 * a * c; if (d > 0) cout << 2 << endl << (-b - sqrtl(d)) / a / 2 << endl << (-b + sqrtl(d)) / a / 2 << endl; else if (d == 0) cout << 1 << endl << -b / a / 2 << endl; else cout << 0 << endl; } } /** * エントリポイント. * @return 0. */ int main() { solve(); return 0; }