結果
問題 | No.955 ax^2+bx+c=0 |
ユーザー | tanimani364 |
提出日時 | 2021-04-04 18:50:27 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,508 bytes |
コンパイル時間 | 1,687 ms |
コンパイル使用メモリ | 200,940 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-06-08 15:34:15 |
合計ジャッジ時間 | 4,037 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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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 |
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testcase_00 | AC | 2 ms
5,248 KB |
testcase_01 | AC | 1 ms
5,376 KB |
testcase_02 | AC | 1 ms
5,376 KB |
testcase_03 | AC | 1 ms
5,376 KB |
testcase_04 | AC | 1 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 1 ms
5,376 KB |
testcase_11 | AC | 1 ms
5,376 KB |
testcase_12 | AC | 1 ms
5,376 KB |
testcase_13 | AC | 1 ms
5,376 KB |
testcase_14 | AC | 2 ms
5,376 KB |
testcase_15 | AC | 1 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 1 ms
5,376 KB |
testcase_18 | AC | 1 ms
5,376 KB |
testcase_19 | AC | 1 ms
5,376 KB |
testcase_20 | AC | 2 ms
5,376 KB |
testcase_21 | AC | 1 ms
5,376 KB |
testcase_22 | AC | 1 ms
5,376 KB |
testcase_23 | AC | 1 ms
5,376 KB |
testcase_24 | AC | 2 ms
5,376 KB |
testcase_25 | AC | 2 ms
5,376 KB |
testcase_26 | AC | 1 ms
5,376 KB |
testcase_27 | AC | 1 ms
5,376 KB |
testcase_28 | AC | 1 ms
5,376 KB |
testcase_29 | AC | 1 ms
5,376 KB |
testcase_30 | AC | 1 ms
5,376 KB |
testcase_31 | AC | 2 ms
5,376 KB |
testcase_32 | AC | 1 ms
5,376 KB |
testcase_33 | AC | 1 ms
5,376 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
5,376 KB |
testcase_59 | WA | - |
testcase_60 | AC | 2 ms
5,376 KB |
testcase_61 | AC | 2 ms
5,376 KB |
testcase_62 | AC | 1 ms
5,376 KB |
testcase_63 | WA | - |
testcase_64 | AC | 2 ms
5,376 KB |
testcase_65 | WA | - |
testcase_66 | AC | 2 ms
5,376 KB |
testcase_67 | AC | 2 ms
5,376 KB |
testcase_68 | AC | 2 ms
5,376 KB |
testcase_69 | AC | 1 ms
5,376 KB |
testcase_70 | WA | - |
testcase_71 | AC | 1 ms
5,376 KB |
testcase_72 | AC | 2 ms
5,376 KB |
testcase_73 | AC | 1 ms
5,376 KB |
testcase_74 | AC | 1 ms
5,376 KB |
testcase_75 | AC | 1 ms
5,376 KB |
testcase_76 | AC | 1 ms
5,376 KB |
testcase_77 | WA | - |
testcase_78 | WA | - |
testcase_79 | WA | - |
testcase_80 | AC | 2 ms
5,376 KB |
testcase_81 | AC | 1 ms
5,376 KB |
testcase_82 | AC | 1 ms
5,376 KB |
testcase_83 | AC | 2 ms
5,376 KB |
testcase_84 | AC | 2 ms
5,376 KB |
testcase_85 | AC | 2 ms
5,376 KB |
testcase_86 | AC | 1 ms
5,376 KB |
testcase_87 | AC | 2 ms
5,376 KB |
testcase_88 | AC | 1 ms
5,376 KB |
testcase_89 | AC | 2 ms
5,376 KB |
testcase_90 | AC | 1 ms
5,376 KB |
testcase_91 | AC | 2 ms
5,376 KB |
testcase_92 | AC | 2 ms
5,376 KB |
testcase_93 | AC | 2 ms
5,376 KB |
testcase_94 | AC | 2 ms
5,376 KB |
testcase_95 | AC | 1 ms
5,376 KB |
testcase_96 | AC | 2 ms
5,376 KB |
testcase_97 | AC | 1 ms
5,376 KB |
testcase_98 | AC | 2 ms
5,376 KB |
testcase_99 | AC | 2 ms
5,376 KB |
testcase_100 | AC | 2 ms
5,376 KB |
testcase_101 | AC | 1 ms
5,376 KB |
testcase_102 | AC | 1 ms
5,376 KB |
testcase_103 | AC | 1 ms
5,376 KB |
testcase_104 | AC | 1 ms
5,376 KB |
testcase_105 | AC | 1 ms
5,376 KB |
testcase_106 | AC | 2 ms
5,376 KB |
testcase_107 | AC | 1 ms
5,376 KB |
testcase_108 | AC | 1 ms
5,376 KB |
testcase_109 | AC | 1 ms
5,376 KB |
testcase_110 | AC | 2 ms
5,376 KB |
testcase_111 | AC | 2 ms
5,376 KB |
testcase_112 | AC | 1 ms
5,376 KB |
testcase_113 | AC | 2 ms
5,376 KB |
testcase_114 | AC | 1 ms
5,376 KB |
testcase_115 | AC | 1 ms
5,376 KB |
testcase_116 | AC | 1 ms
5,376 KB |
testcase_117 | AC | 1 ms
5,376 KB |
testcase_118 | AC | 2 ms
5,376 KB |
testcase_119 | AC | 1 ms
5,376 KB |
testcase_120 | AC | 2 ms
5,376 KB |
testcase_121 | AC | 2 ms
5,376 KB |
testcase_122 | AC | 1 ms
5,376 KB |
testcase_123 | AC | 1 ms
5,376 KB |
testcase_124 | WA | - |
ソースコード
#include <bits/stdc++.h> //#include<boost/multiprecision/cpp_int.hpp> //#include<boost/multiprecision/cpp_dec_float.hpp> //#include <atcoder/all> #define rep(i, a) for (int i = (int)0; i < (int)a; ++i) #define rrep(i, a) for (int i = (int)a - 1; i >= 0; --i) #define REP(i, a, b) for (int i = (int)a; i < (int)b; ++i) #define RREP(i, a, b) for (int i = (int)a - 1; i >= b; --i) #define repl(i, a) for (ll i = (ll)0; i < (ll)a; ++i) #define pb push_back #define eb emplace_back #define all(x) x.begin(), x.end() #define rall(x) x.rbegin(), x.rend() #define popcount __builtin_popcount #define fi first #define se second using ll = long long; constexpr ll mod = 1e9 + 7; constexpr ll mod_998244353 = 998244353; constexpr ll INF = 1LL << 60; // #pragma GCC target("avx2") // #pragma GCC optimize("O3") // #pragma GCC optimize("unroll-loops") //using lll=boost::multiprecision::cpp_int; //using Double=boost::multiprecision::number<boost::multiprecision::cpp_dec_float<1024>>;//仮数部が1024桁 template <class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; } return false; } template <class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; } return false; } template <typename T> T mypow(T x, T n, const T &p = -1) { //x^nをmodで割った余り if (p != -1) { x %= p; } T ret = 1; while (n > 0) { if (n & 1) { if (p != -1) ret = (ret * x) % p; else ret *= x; } if (p != -1) x = (x * x) % p; else x *= x; n >>= 1; } return ret; } using namespace std; //using namespace atcoder; void solve() { ll a,b,c; cin>>a>>b>>c; auto D=[](ll a,ll b,ll c)->ll{ return b*b-a*c*4; }; if(!a){ if(!b){ if(!c){ cout<<-1<<"\n"; }else{ cout<<0<<"\n"; } }else{ cout<<1<<"\n"; long double bb=b,cc=c; long double x=-cc/bb; cout<<x<<"\n"; } } else if(D(a,b,c)<0){ cout<<0<<"\n"; }else if(D(a,b,c)==0){ cout<<1<<"\n"; long double aa=a,bb=b; long double x=-bb/(aa*2); cout<<x<<"\n"; }else{ cout<<2<<"\n"; long double l=0,r=3000000000; long double aa=a,bb=b,cc=c; rep(i,500){ long double mid=(l+r)/2; if(mid*mid<=bb*bb-aa*cc*4)l=mid; else r=mid; } long double x=l; long double x1=(-bb-x)/(aa*2),x2=(-bb+x)/(aa*2); cout<<x1<<"\n"<<x2<<"\n"; } } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); cout << fixed << setprecision(30); solve(); return 0; }