結果
| 問題 |
No.1273 はじめのζ関数
|
| コンテスト | |
| ユーザー |
kei
|
| 提出日時 | 2020-10-30 22:16:37 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,202 bytes |
| コンパイル時間 | 1,616 ms |
| コンパイル使用メモリ | 168,544 KB |
| 実行使用メモリ | 6,944 KB |
| 最終ジャッジ日時 | 2024-07-22 01:04:08 |
| 合計ジャッジ時間 | 2,760 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 34 WA * 6 |
ソースコード
#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int INF = 1e9;
const ll LINF = 1e18;
inline ll gcd(ll a, ll b) { return b ? gcd(b, a%b) : a; }
inline ll lcm(ll a, ll b) { return a / gcd(a, b)*b; }
template<class S,class T> ostream& operator << (ostream& out,const pair<S,T>& o){ out << "(" << o.first << "," << o.second << ")"; return out; }
template<class T> ostream& operator << (ostream& out,const vector<T>& V){ for(int i = 0; i < V.size(); i++){ out << V[i]; if(i!=V.size()-1) out << " ";} return out; }
template<class T> ostream& operator << (ostream& out,const vector<vector<T> >& Mat){ for(int i = 0; i < Mat.size(); i++) { if(i != 0) out << endl; out << Mat[i];} return out; }
template<class S,class T> ostream& operator << (ostream& out,const map<S,T>& mp){ out << "{ "; for(auto it = mp.begin(); it != mp.end(); it++){ out << it->first << ":" << it->second; if(mp.size()-1 != distance(mp.begin(),it)) out << ", "; } out << " }"; return out; }
template<typename T>vector<T> make_v(size_t a){return vector<T>(a);}
template<typename T,typename... Ts>auto make_v(size_t a,Ts... ts){return vector<decltype(make_v<T>(ts...))>(a,make_v<T>(ts...));}
template<typename T,typename V> typename enable_if<is_class<T>::value==0>::type fill_v(T &t,const V &v){t=v;}
template<typename T,typename V> typename enable_if<is_class<T>::value!=0>::type fill_v(T &t,const V &v){for(auto &e:t) fill_v(e,v);}
/*
<url:>
問題文============================================================
=================================================================
解説=============================================================
================================================================
*/
double eps = 1e-9;
double pi = acos(-1.0);
double calc_harmonic_num(int n){
double harmonic_num = 0;
for(int k = 1; k <= n; k++){
harmonic_num += 1.0/k;
}
return harmonic_num;
}
template<class Type>
Type solveA(Type res = Type()){
int k; cin >> k;
if(k == 0) return pi*pi/6;
res = calc_harmonic_num(k)/k;
return res;
}
template<class Type>
Type solveB(Type res = Type()){
double k; cin >> k;
for(int n = 1; n <= 100; n++){
double n_divpow_n = 1;
for(int i = 0; i < n;i++){
n_divpow_n /= n;
}
double sinkn = sin(k*n);
res += sinkn*n_divpow_n;
}
return res;
}
double calc_L(int n){
double L = 0.0;
for(int i = 1;;i++){
double add_val = 1.0;
for(int n_ = 0; n_ < n;n_++){
add_val /= i;
if(add_val < eps) break;
}
if(add_val < eps) break;
L += add_val;
}
return L;
}
template<class Type>
Type solveC(Type res = Type()){
int x; cin >> x;
double sum = 0.0;
for(int i = x; i <= 100; i++){
double L = calc_L(i);
// cout << i << " " << L << endl;
if(abs(L-1) < eps) break;
sum += (L-1.0);
}
res = (sum * 1000000 + 0.5);
return res;
}
int main(void) {
cin.tie(0); ios::sync_with_stdio(false);
//solve<ll>(0);
cout << fixed << setprecision(12) << solveC<ll>() << endl;
return 0;
}
kei