結果
問題 | No.1478 Simple Sugoroku |
ユーザー |
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提出日時 | 2021-04-16 22:33:43 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 27 ms / 2,000 ms |
コード長 | 2,032 bytes |
コンパイル時間 | 2,036 ms |
コンパイル使用メモリ | 194,992 KB |
最終ジャッジ日時 | 2025-01-20 20:16:36 |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 38 |
ソースコード
#include <bits/stdc++.h>//#include<boost/multiprecision/cpp_int.hpp>//#include<boost/multiprecision/cpp_dec_float.hpp>//#include <atcoder/all>#define rep(i, a) for (int i = (int)0; i < (int)a; ++i)#define rrep(i, a) for (int i = (int)a; i >-1; --i)#define REP(i, a, b) for (int i = (int)a; i < (int)b; ++i)#define RREP(i, a, b) for (int i = (int)a; i > b; --i)#define repl(i, a) for (ll i = (ll)0; i < (ll)a; ++i)#define pb push_back#define eb emplace_back#define all(x) x.begin(), x.end()#define rall(x) x.rbegin(), x.rend()#define popcount __builtin_popcount#define popcountll __builtin_popcountll#define fi first#define se secondusing ll = long long;constexpr ll mod = 1e9 + 7;constexpr ll mod_998244353 = 998244353;constexpr ll INF = 1LL << 60;// #pragma GCC target("avx2")// #pragma GCC optimize("O3")// #pragma GCC optimize("unroll-loops")//using lll=boost::multiprecision::cpp_int;//using Double=boost::multiprecision::number<boost::multiprecision::cpp_dec_float<128>>;//仮数部が1024桁template <class T>inline bool chmin(T &a, T b){if (a > b){a = b;return true;}return false;}template <class T>inline bool chmax(T &a, T b){if (a < b){a = b;return true;}return false;}ll mypow(ll x, ll n, const ll &p = -1){ //x^nをmodで割った余りif (p != -1){x =(x%p+p)%p;}ll ret = 1;while (n > 0){if (n & 1){if (p != -1)ret = (ret * x) % p;elseret *= x;}if (p != -1)x = (x * x) % p;elsex *= x;n >>= 1;}return ret;}using namespace std;//using namespace atcoder;void solve(){double n;int m;cin>>n>>m;vector<double>b(m);rep(i,m){cin>>b[i];}double sum=accumulate(all(b),0);double add=0;double ans=n-1;for(int cnt=1;cnt<=m;++cnt){double res=n-1;res+=double(m)/cnt;add+=b[m-cnt]-b[0];res-=add/cnt;chmin(ans,res);}cout<<ans<<"\n";}int main(){ios::sync_with_stdio(false);cin.tie(nullptr);cout << fixed << setprecision(15);solve();return 0;}