結果
問題 | No.1319 最強とんがりコーン |
ユーザー |
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提出日時 | 2020-12-16 01:25:32 |
言語 | C++17(gcc12) (gcc 12.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 1,333 ms / 2,000 ms |
コード長 | 3,734 bytes |
コンパイル時間 | 13,258 ms |
コンパイル使用メモリ | 283,916 KB |
最終ジャッジ日時 | 2025-01-17 01:34:12 |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 1 |
other | AC * 70 |
ソースコード
#line 2 "cpplib/util/template.hpp"#pragma GCC optimize("Ofast")#pragma GCC optimize("unroll-loops")#pragma GCC target("avx2")#include<bits/stdc++.h>using namespace std;struct __INIT__{__INIT__(){cin.tie(0);ios::sync_with_stdio(false);cout<<fixed<<setprecision(15);}}__INIT__;typedef long long lint;#define INF (1LL<<60)#define IINF (1<<30)#define EPS (1e-10)#define endl ('\n')typedef vector<lint> vec;typedef vector<vector<lint>> mat;typedef vector<vector<vector<lint>>> mat3;typedef vector<string> svec;typedef vector<vector<string>> smat;template<typename T>using V=vector<T>;template<typename T>using VV=V<V<T>>;template<typename T>inline void output(T t){bool f=0;for(auto i:t){cout<<(f?" ":"")<<i;f=1;}cout<<endl;}template<typename T>inline void output2(T t){for(auto i:t)output(i);}template<typename T>inline void debug(T t){bool f=0;for(auto i:t){cerr<<(f?" ":"")<<i;f=1;}cerr<<endl;}template<typename T>inline void debug2(T t){for(auto i:t)output(i);}#define loop(n) for(long long _=0;_<(long long)(n);++_)#define rep(i,...) for(auto i:range(__VA_ARGS__))#define rrep(i,...) for(auto i:reversed(range(__VA_ARGS__)))#define repi(i,a,b) for(lint i=lint(a);i<(lint)(b);++i)#define rrepi(i,a,b) for(lint i=lint(b)-1;i>=lint(a);--i)#define irep(i) for(lint i=0;;++i)inline vector<long long> range(long long n){if(n<=0)return vector<long long>();vector<long long>v(n);iota(v.begin(),v.end(),0LL);return v;}inline vector<long long> range(long long a,long long b){if(b<=a)return vector<long long>();vector<long long>v(b-a);iota(v.begin(),v.end(),a);return v;}inline vector<long long> range(long long a,long long b,long long c){if((b-a+c-1)/c<=0)return vector<long long>();vector<long long>v((b-a+c-1)/c);for(int i=0;i<(int)v.size();++i)v[i]=i?v[i-1]+c:a;return v;}template<typename T>inline T reversed(T v){reverse(v.begin(),v.end());return v;}#define all(n) begin(n),end(n)template<typename T,typename E>bool chmin(T& s,const E& t){bool res=s>t;s=min<T>(s,t);return res;}template<typename T,typename E>bool chmax(T& s,const E& t){bool res=s<t;s=max<T>(s,t);return res;}const vector<lint> dx={1,0,-1,0,1,1,-1,-1};const vector<lint> dy={0,1,0,-1,1,-1,1,-1};#define SUM(v) accumulate(all(v),0LL)template<typename T,typename ...Args>auto make_vector(T x,int arg,Args ...args){if constexpr(sizeof...(args)==0)return vector<T>(arg,x);else returnvector(arg,make_vector<T>(x,args...));}#define extrep(v,...) for(auto v:__MAKE_MAT__({__VA_ARGS__}))vector<vector<long long>> __MAKE_MAT__(vector<long long> v){if(v.empty())return vector<vector<long long>>(1,vector<long long>());long long n=v.back();v.pop_back();vector<vector<long long>> ret;vector<vector<long long>> tmp=__MAKE_MAT__(v);for(auto e:tmp)for(long long i=0;i<n;++i){ret.push_back(e);ret.back().push_back(i);}return ret;}using graph=vector<vector<int>>;template<typename T>using graph_w=vector<vector<pair<int,T>>>;template<typename T,typename E>ostream& operator<<(ostream& out,pair<T,E>v){out<<"("<<v.first<<","<<v.second<<")";return out;}#line 2 "code.cpp"int main(){double r,h,d;cin>>r>>h>>d;double ans=0;if(r*r*4-d*d==0){cout<<0<<endl;return 0;}// double w=sqrt(r*r-d*d/4);// double w2=d;int div=50000000;long double pre=0;double mx_h=h-d*h/2/r;for(int i=0;i<div;++i){// double y=w/div*i;// double p=h*(w2-y)/w2/sqrt(r*r-y*y)*2;// ans+=pow(sqrt(r*r-y*y)-d/2,2)*p*(w/div);double z=mx_h*i/div;double r2=r*(h-z)/h;if(r2*r2-d*d/4<0)break;double t=acos(d/2/r2);ans+=(r2*r2*t-d*sqrt(r2*r2-d*d/4)/2+pre)*(mx_h/div);pre=r2*r2*t-d*sqrt(r2*r2-d*d/4)/2;}cout<<ans<<endl;}