結果
問題 | No.1271 初めての級数 |
ユーザー | hamamu |
提出日時 | 2020-10-30 21:28:13 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 6,560 bytes |
コンパイル時間 | 2,094 ms |
コンパイル使用メモリ | 202,480 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-07-21 23:15:06 |
合計ジャッジ時間 | 2,376 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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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 |
---|---|---|
testcase_00 | AC | 1 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 1 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 1 ms
6,944 KB |
testcase_06 | AC | 1 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,944 KB |
testcase_08 | AC | 2 ms
6,944 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | AC | 2 ms
6,940 KB |
testcase_11 | AC | 2 ms
6,940 KB |
testcase_12 | AC | 2 ms
6,944 KB |
ソースコード
#include "bits/stdc++.h" using namespace std; using ll=long long; using vll=vector< ll>; using vvll=vector< vll>; using vvvll=vector< vvll>; using vvvvll=vector<vvvll>; using dd=double; using vdd=vector< dd>; using vvdd=vector< vdd>; using pll=pair<ll,ll>; using tll=tuple<ll,ll,ll>; using qll=tuple<ll,ll,ll,ll>; using vpll=vector< pll>; constexpr ll INF = 1LL << 60; struct Fast{ Fast(){ cin.tie(0); ios::sync_with_stdio(false); cout<<fixed<<setprecision(numeric_limits<double>::max_digits10); } } fast; #define REPS(i, S, E) for (ll i = (S); i <= (E); i++) #define REP(i, N) REPS(i, 0, (N)-1) #define DEPS(i, S, E) for (ll i = (E); i >= (S); i--) #define DEP(i, N) DEPS(i, 0, (N)-1) #define rep(i, S, E) for (ll i = (S); i <= (E); i++) #define dep(i, E, S) for (ll i = (E); i >= (S); i--) #define each(e, v) for (auto&& e : v) #define ALL(v) (v).begin(), (v).end() #define RALL(v) (v).rbegin(), (v).rend() template<class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; }return false; } template<class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; }return false; } template<class T> inline T MaxE(vector<T>&v,ll S,ll E){ T m=v[S]; rep(i,S,E)chmax(m,v[i]); return m; } template<class T> inline T MinE(vector<T>&v,ll S,ll E){ T m=v[S]; rep(i,S,E)chmin(m,v[i]); return m; } template<class T> inline T MaxE(vector<T> &v) { return MaxE(v,0,(ll)v.size()-1); } template<class T> inline T MinE(vector<T> &v) { return MinE(v,0,(ll)v.size()-1); } template<class T> inline T Sum(vector<T> &v,ll S,ll E){ T s=T(); rep(i,S,E)s+=v[i]; return s; } template<class T> inline T Sum(vector<T> &v) { return Sum(v,0,v.size()-1); } template<class T> inline ll sz(T &v){ return (ll)v.size(); } inline ll CEIL(ll a,ll b){ return (a<0) ? -(-a/b) : (a+b-1)/b; } inline ll FLOOR(ll a,ll b){ return -CEIL(-a,b); } template<ll MOD> struct mll_{ ll val; mll_(ll v = 0): val(v % MOD){ if (val < 0) val += MOD; } mll_ operator - () const { return -val; } mll_ operator + (const mll_ &b) const { return val + b.val; } mll_ operator - (const mll_ &b) const { return val - b.val; } mll_ operator * (const mll_ &b) const { return val * b.val; } mll_ operator / (const mll_ &b) const { return mll_(*this) /= b; } mll_ operator + (ll b) const { return *this + mll_(b); } mll_ operator - (ll b) const { return *this - mll_(b); } mll_ operator * (ll b) const { return *this * mll_(b); } friend mll_ operator + (ll a,const mll_ &b) { return b + a; } friend mll_ operator - (ll a,const mll_ &b) { return -b + a; } friend mll_ operator * (ll a,const mll_ &b) { return b * a; } friend mll_ operator / (ll a,const mll_ &b) { return mll_(a)/b; } mll_ &operator += (const mll_ &b) { val=(val+b.val)%MOD; return *this; } mll_ &operator -= (const mll_ &b) { val=(val+MOD-b.val)%MOD; return *this; } mll_ &operator *= (const mll_ &b) { val=(val*b.val)%MOD; return *this; } mll_ &operator /= (const mll_ &b) { ll c=b.val,d=MOD,u=1,v=0; while (d){ ll t = c / d; c -= t * d; swap(c,d); u -= t * v; swap(u,v); } val = val * u % MOD; if (val < 0) val += MOD; return *this; } mll_ &operator += (ll b) { return *this += mll_(b); } mll_ &operator -= (ll b) { return *this -= mll_(b); } mll_ &operator *= (ll b) { return *this *= mll_(b); } mll_ &operator /= (ll b) { return *this /= mll_(b); } bool operator == (const mll_ &b) const { return val == b.val; } bool operator != (const mll_ &b) const { return val != b.val; } bool operator == (ll b) const { return *this == mll_(b); } bool operator != (ll b) const { return *this != mll_(b); } friend bool operator == (ll a,const mll_ &b) { return mll_(a) == b.val; } friend bool operator != (ll a,const mll_ &b) { return mll_(a) != b.val; } friend ostream &operator << (ostream &os,const mll_ &a) { return os << a.val; } friend istream &operator >> (istream &is,mll_ &a) { return is >> a.val; } static mll_ Combination(ll a,ll b){ chmin(b,a-b); if (b<0) return mll_(0); mll_ c = 1; rep(i,0,b-1) c *= a-i; rep(i,0,b-1) c /= i+1; return c; } }; using mll = mll_<998244353LL>; using vmll = std::vector<mll>; using vvmll = std::vector<vmll>; using vvvmll = std::vector<vvmll>; using vvvvmll = std::vector<vvvmll>; template<class T> struct MatG{ ll h=0, w=0; //h行w列 vector<vector<T>> mat; MatG(){} MatG(ll h_, ll w_, T x) { init(h_, w_, x); } MatG(ll h_, ll w_) { init(h_, w_); } MatG(ll h_, ll w_, string c) { init(h_, w_, c); } void init(ll h_, ll w_, T x){ h=h_; w=w_; mat.assign(h, vector<T>(w,x)); } void init(ll h_, ll w_){ init(h_,w_,T()); } void init(ll h_, ll w_, string c){ init(h_, w_); if(c=="E")E(); } ll H() const { return h; } ll W() const { return w; } bool invalid() const { return mat.empty(); } vector<T> &operator[](ll i) { return mat[i]; } const vector<T> &operator[](ll i) const { return mat[i]; } MatG<T> &operator+=(const MatG<T> &B) {REP(i,h)REP(j,w) mat[i][j]+=B[i][j];return *this;} MatG<T> operator+(const MatG<T> &B) const {return MatG<T>(*this) += B;} MatG<T> operator*(const MatG<T> &B) const { MatG<T> ret(h, B.W()); REP(i, h) REP(j, B.W()) REP(k, w) ret[i][j] += mat[i][k] * B[k][j]; return move(ret); } vector<T> operator*(const vector<T> &v) const { vector<T> ret(v.size()); REP(i, this->h) REP(j, this->w) ret[i] += this->mat[i][j] * v[j]; return move(ret); } MatG<T> Pow(ll N) const { MatG<T> ret(*this), a(*this); for (ll n=N-1; n>0; n>>=1, a=a*a){ if (n&1) ret=ret*a; } return move(ret); } MatG<T> t() const { MatG<T> ret(this->w, this->h); REP(i, this->w) REP(j, this->h) ret[i][j] = this->mat[j][i]; return move(ret); } void E(){ rep(i, 0, min(h,w)-1) mat[i][i]=1; } #if defined(_DEBUG) void dump() { ::dump(mat); } #endif MatG(MatG<T> &&B){ *this=move(B); } //以下、ムーブ対応 MatG(MatG<T> const &B){ *this=B; } MatG<T> &operator=(MatG<T> &&B){ h=B.h; w=B.w; mat.swap(B.mat); return *this; } MatG<T> &operator=(MatG<T> const &B){ h=B.h; w=B.w; mat=B.mat; return *this; } }; using Mat = MatG<mll>; #if 0 #include <atcoder/all> using namespace atcoder; #endif dd pi=3.14159265358979; void solve() { ll k; cin >> k; if (k==0){ cout << pi*pi/6. << '\n';return; } dd ans=0.; rep(i,1,k){ ans+=1./i; } cout << ans/k << '\n'; } int main(){ #if 1 solve(); #else ll t; cin >> t; rep(i, 0, t-1){ solve(); } #endif return 0; }