結果
問題 | No.955 ax^2+bx+c=0 |
ユーザー | ngtkana |
提出日時 | 2020-03-28 01:26:39 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,316 bytes |
コンパイル時間 | 2,157 ms |
コンパイル使用メモリ | 208,016 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-10 16:57:48 |
合計ジャッジ時間 | 4,873 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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
6,816 KB |
testcase_01 | AC | 2 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 1 ms
6,944 KB |
testcase_08 | AC | 1 ms
6,944 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | AC | 1 ms
6,940 KB |
testcase_11 | AC | 2 ms
6,944 KB |
testcase_12 | AC | 2 ms
6,944 KB |
testcase_13 | AC | 2 ms
6,940 KB |
testcase_14 | AC | 2 ms
6,944 KB |
testcase_15 | AC | 2 ms
6,944 KB |
testcase_16 | AC | 2 ms
6,940 KB |
testcase_17 | AC | 2 ms
6,940 KB |
testcase_18 | AC | 2 ms
6,940 KB |
testcase_19 | AC | 2 ms
6,940 KB |
testcase_20 | AC | 2 ms
6,944 KB |
testcase_21 | AC | 1 ms
6,940 KB |
testcase_22 | AC | 2 ms
6,944 KB |
testcase_23 | AC | 2 ms
6,944 KB |
testcase_24 | AC | 2 ms
6,940 KB |
testcase_25 | AC | 2 ms
6,940 KB |
testcase_26 | AC | 2 ms
6,940 KB |
testcase_27 | AC | 2 ms
6,940 KB |
testcase_28 | AC | 2 ms
6,940 KB |
testcase_29 | AC | 2 ms
6,944 KB |
testcase_30 | AC | 1 ms
6,944 KB |
testcase_31 | AC | 2 ms
6,940 KB |
testcase_32 | AC | 1 ms
6,940 KB |
testcase_33 | AC | 2 ms
6,944 KB |
testcase_34 | AC | 2 ms
6,940 KB |
testcase_35 | AC | 2 ms
6,940 KB |
testcase_36 | AC | 1 ms
6,944 KB |
testcase_37 | AC | 2 ms
6,944 KB |
testcase_38 | AC | 1 ms
6,944 KB |
testcase_39 | AC | 2 ms
6,940 KB |
testcase_40 | AC | 2 ms
6,944 KB |
testcase_41 | AC | 2 ms
6,944 KB |
testcase_42 | AC | 2 ms
6,940 KB |
testcase_43 | AC | 2 ms
6,940 KB |
testcase_44 | AC | 2 ms
6,940 KB |
testcase_45 | AC | 2 ms
6,940 KB |
testcase_46 | AC | 2 ms
6,944 KB |
testcase_47 | AC | 2 ms
6,944 KB |
testcase_48 | AC | 1 ms
6,940 KB |
testcase_49 | AC | 2 ms
6,944 KB |
testcase_50 | AC | 2 ms
6,940 KB |
testcase_51 | AC | 2 ms
6,944 KB |
testcase_52 | AC | 2 ms
6,944 KB |
testcase_53 | AC | 2 ms
6,940 KB |
testcase_54 | AC | 2 ms
6,940 KB |
testcase_55 | AC | 1 ms
6,940 KB |
testcase_56 | AC | 2 ms
6,940 KB |
testcase_57 | AC | 2 ms
6,940 KB |
testcase_58 | WA | - |
testcase_59 | AC | 2 ms
6,944 KB |
testcase_60 | AC | 1 ms
6,944 KB |
testcase_61 | AC | 2 ms
6,940 KB |
testcase_62 | AC | 2 ms
6,944 KB |
testcase_63 | AC | 1 ms
6,944 KB |
testcase_64 | AC | 2 ms
6,940 KB |
testcase_65 | AC | 2 ms
6,944 KB |
testcase_66 | AC | 2 ms
6,944 KB |
testcase_67 | AC | 2 ms
6,940 KB |
testcase_68 | AC | 2 ms
6,944 KB |
testcase_69 | AC | 2 ms
6,944 KB |
testcase_70 | AC | 2 ms
6,940 KB |
testcase_71 | AC | 2 ms
6,940 KB |
testcase_72 | AC | 1 ms
6,940 KB |
testcase_73 | AC | 2 ms
6,940 KB |
testcase_74 | AC | 2 ms
6,944 KB |
testcase_75 | AC | 2 ms
6,944 KB |
testcase_76 | AC | 2 ms
6,940 KB |
testcase_77 | AC | 1 ms
6,940 KB |
testcase_78 | AC | 2 ms
6,944 KB |
testcase_79 | AC | 2 ms
6,944 KB |
testcase_80 | AC | 2 ms
6,940 KB |
testcase_81 | AC | 2 ms
6,940 KB |
testcase_82 | AC | 2 ms
6,944 KB |
testcase_83 | AC | 1 ms
6,944 KB |
testcase_84 | AC | 1 ms
6,940 KB |
testcase_85 | AC | 1 ms
6,940 KB |
testcase_86 | AC | 1 ms
6,944 KB |
testcase_87 | AC | 1 ms
6,944 KB |
testcase_88 | AC | 2 ms
6,944 KB |
testcase_89 | AC | 1 ms
6,940 KB |
testcase_90 | AC | 2 ms
6,940 KB |
testcase_91 | AC | 2 ms
6,940 KB |
testcase_92 | AC | 2 ms
6,940 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 | 1 ms
6,940 KB |
testcase_97 | AC | 2 ms
6,944 KB |
testcase_98 | AC | 2 ms
6,944 KB |
testcase_99 | AC | 2 ms
6,944 KB |
testcase_100 | AC | 1 ms
6,944 KB |
testcase_101 | AC | 2 ms
6,940 KB |
testcase_102 | AC | 1 ms
6,944 KB |
testcase_103 | AC | 2 ms
6,940 KB |
testcase_104 | AC | 2 ms
6,944 KB |
testcase_105 | AC | 1 ms
6,940 KB |
testcase_106 | AC | 2 ms
6,944 KB |
testcase_107 | AC | 2 ms
6,940 KB |
testcase_108 | AC | 2 ms
6,940 KB |
testcase_109 | AC | 2 ms
6,944 KB |
testcase_110 | AC | 1 ms
6,940 KB |
testcase_111 | AC | 2 ms
6,940 KB |
testcase_112 | AC | 2 ms
6,940 KB |
testcase_113 | AC | 2 ms
6,940 KB |
testcase_114 | AC | 2 ms
6,940 KB |
testcase_115 | AC | 2 ms
6,940 KB |
testcase_116 | AC | 2 ms
6,940 KB |
testcase_117 | AC | 2 ms
6,944 KB |
testcase_118 | AC | 2 ms
6,940 KB |
testcase_119 | AC | 2 ms
6,940 KB |
testcase_120 | AC | 2 ms
6,940 KB |
testcase_121 | AC | 2 ms
6,944 KB |
testcase_122 | AC | 2 ms
6,944 KB |
testcase_123 | AC | 2 ms
6,944 KB |
testcase_124 | AC | 2 ms
6,940 KB |
コンパイルメッセージ
main.cpp: In lambda function: main.cpp:34:27: warning: narrowing conversion of 'c' from 'const lint' {aka 'const long long int'} to 'real' {aka 'long double'} [-Wnarrowing] 34 | return {-real{c}/b}; | ^ main.cpp:34:27: warning: narrowing conversion of '(lint)c' from 'lint' {aka 'long long int'} to 'real' {aka 'long double'} [-Wnarrowing] main.cpp:37:22: warning: narrowing conversion of 'b' from 'const lint' {aka 'const long long int'} to 'real' {aka 'long double'} [-Wnarrowing] 37 | real x=-real{b}/(2*a); | ^ main.cpp:37:22: warning: narrowing conversion of '(lint)b' from 'lint' {aka 'long long int'} to 'real' {aka 'long double'} [-Wnarrowing]
ソースコード
#include<bits/stdc++.h> using lint=long long; using real=long double; void debug_impl(){std::cerr<<'\n';} template<class Head,class...Tail>void debug_impl(Head head, Tail... tail){std::cerr << " " << head;debug_impl(tail...);} template<class Container,class Value=typename Container::value_type,std::enable_if_t<!std::is_same<Container,std::string>::value,std::nullptr_t> = nullptr> std::ostream&operator<<(std::ostream&os,Container const&v) {os<<"{";for(auto it=v.begin();it!=v.end();it++){os<<(it!=v.begin()?",":"")<<*it;}return os<<"}";} template<template<class...>class Tuple,class...Args,std::size_t...Inds,std::size_t=std::tuple_size<Tuple<Args...>>::value> std::ostream&tuple_output_impl(std::ostream&os,const Tuple<Args...>&tuple,std::integer_sequence<std::size_t,Inds...>) {os<<"(";(void)std::initializer_list<int>{((void)(os<<(Inds>0?",":"")<<std::get<Inds>(tuple)),0)...};return os<<")";} template<template<class...>class Tuple,class...Args,std::size_t=std::tuple_size<Tuple<Args...>>::value> std::ostream&operator<<(std::ostream&os,const Tuple<Args...>&tuple) {return tuple_output_impl(os,tuple,std::index_sequence_for<Args...>());} #define DEBUG 1 #if DEBUG #define debug(...)do{std::cerr<<std::boolalpha<<"["<<#__VA_ARGS__<<"]:";debug_impl(__VA_ARGS__);std::cerr<<std::noboolalpha;}while(false) #else #define debug(...) {} #endif int main(){ std::cin.tie(nullptr);std::ios_base::sync_with_stdio(false); std::cout.setf(std::ios_base::fixed);std::cout.precision(30); lint a,b,c;std::cin>>a>>b>>c; auto ans=[a,b,c]()->std::vector<real>{ if(a==0){ if(b==0){ if(c==0){ std::cout<<-1<<'\n'; exit(0); } return {}; } return {-real{c}/b}; } lint D=b*b-4*a*c; real x=-real{b}/(2*a); if(D<0)return {}; if(D==0)return {x}; real y=real{4}*a*c/(b*b); debug(x,y); std::vector<real>ans(2); ans.at(0)=x*(1+std::sqrt(1-y)); ans.at(1)=std::abs(y)<1e-6 ?x*(y/2+y*y/8+y*y*y/16) :x*(1-std::sqrt(1-y)); return ans; }(); std::sort(ans.begin(),ans.end()); std::cout<<ans.size()<<'\n'; for(real x:ans){ std::cout<<x<<'\n'; } }