結果
問題 | No.1118 sin(x)/xの二乗和 |
ユーザー |
|
提出日時 | 2021-08-30 22:47:10 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 59 ms / 2,000 ms |
コード長 | 2,633 bytes |
コンパイル時間 | 1,857 ms |
コンパイル使用メモリ | 194,900 KB |
最終ジャッジ日時 | 2025-01-24 04:10:26 |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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ファイルパターン | 結果 |
---|---|
other | AC * 20 |
ソースコード
//GIVE ME AC!!!!!!!!!!!!!!!!!//#pragma GCC target("avx")//#pragma GCC optimize("O3")//#pragma GCC optimize("unroll-loops")#include<bits/stdc++.h>#define ll long long#define ld long double#define floatset() fixed<<setprecision(15)#define all(n) n.begin(),n.end()#define rall(n) n.rbegin(),n.rend()#define rep(i, s, n) for (ll i = s; i < (ll)(n); i++)#define pb push_back#define eb emplace_back#define max_(a) *max_element(all(a))#define min_(a) *min_element(all(a))#define INT(...) int __VA_ARGS__;scan(__VA_ARGS__)#define LL(...) ll __VA_ARGS__;scan(__VA_ARGS__)#define STR(...) string __VA_ARGS__;scan(__VA_ARGS__)#define CHR(...) char __VA_ARGS__;scan(__VA_ARGS__)#define DBL(...) double __VA_ARGS__;scan(__VA_ARGS__)#define LD(...) ld __VA_ARGS__;scan(__VA_ARGS__)using namespace std;using vl=vector<ll>;using vi=vector<int>;using vs=vector<string>;using vc=vector<char>;using vvl=vector<vl>;using P=pair<ll,ll>;using vvc=vector<vc>;using vd=vector<double>;using vp=vector<P>;using vb=vector<bool>;const int dx[8]={1,0,-1,0,1,-1,-1,1};const int dy[8]={0,1,0,-1,1,1,-1,-1};const ll inf=2e18;const ll MOD=1000000007;const ll mod=998244353;const double pi=acos(-1);template<typename T1,typename T2 >ostream &operator<<(ostream&os,const pair<T1,T2>&p) {os<<p.first<<" "<<p.second;return os;}template<typename T1,typename T2>istream &operator>>(istream&is,pair<T1,T2>&p) {is>>p.first>>p.second;return is;}template<typename T>ostream &operator<<(ostream&os,const vector<T>&v) {for(int i=0;i<(int)v.size();i++) {os<<v[i]<<(i+1!=v.size()?" ":"");}return os;}template<typename T>istream &operator>>(istream&is,vector<T>&v) {for(T &in:v)is>>in;return is;}void scan(){}template<class Head,class... Tail>void scan(Head&head,Tail&... tail) {cin>>head;scan(tail...);}template<class T>void print(const T &t) { cout << t << '\n'; }template<class Head, class... Tail>void print(const Head &head, const Tail &... tail) {cout << head << ' ';print(tail...);}template<class... T>void fin(const T &... a) {print(a...);exit(0);}template<typename T>ll sum_(vector<T>&v){ll res=0;for(auto &e:v)res+=e;return res;}template<typename T1,typename T2>inline bool chmax(T1&a,T2 b){return a<b&&(a=b,true);}template<typename T1,typename T2>inline bool chmin(T1&a,T2 b){return a>b&&(a=b,true);}double sinc(double x){if(x==0)return 1;else return pow(sin(x),2)/pow(x,2);}int main(){double ans=(1+pi)/2.0;double x;cin>>x;rep(i,0,1000000){double j=i;ans+=sinc(x+j)-sinc(j);}cout<<floatset()<<ans<<endl;}