結果
問題 | No.1211 円環はお断り |
ユーザー | 👑 tute7627 |
提出日時 | 2020-08-30 14:17:19 |
言語 | C++17(gcc12) (gcc 12.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 1,622 ms / 2,000 ms |
コード長 | 3,771 bytes |
コンパイル時間 | 9,615 ms |
コンパイル使用メモリ | 263,356 KB |
最終ジャッジ日時 | 2025-01-13 21:44:59 |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 41 |
ソースコード
//#define _GLIBCXX_DEBUG #include<bits/stdc++.h> using namespace std; #define endl '\n' #define lfs cout<<fixed<<setprecision(10) #define ALL(a) (a).begin(),(a).end() #define ALLR(a) (a).rbegin(),(a).rend() #define spa << " " << #define fi first #define se second #define MP make_pair #define MT make_tuple #define PB push_back #define EB emplace_back #define rep(i,n,m) for(ll i = (n); i < (ll)(m); i++) #define rrep(i,n,m) for(ll i = (ll)(m) - 1; i >= (ll)(n); i--) using ll = long long; using ld = long double; const ll MOD1 = 1e9+7; const ll MOD9 = 998244353; const ll INF = 1e18; using P = pair<ll, ll>; template<typename T1, typename T2>bool chmin(T1 &a,T2 b){if(a>b){a=b;return true;}else return false;} template<typename T1, typename T2>bool chmax(T1 &a,T2 b){if(a<b){a=b;return true;}else return false;} ll median(ll a,ll b, ll c){return a+b+c-max({a,b,c})-min({a,b,c});} void ans1(bool x){if(x) cout<<"Yes"<<endl;else cout<<"No"<<endl;} void ans2(bool x){if(x) cout<<"YES"<<endl;else cout<<"NO"<<endl;} void ans3(bool x){if(x) cout<<"Yay!"<<endl;else cout<<":("<<endl;} template<typename T1,typename T2>void ans(bool x,T1 y,T2 z){if(x)cout<<y<<endl;else cout<<z<<endl;} template<typename T>void debug(vector<vector<T>>&v,ll h,ll w){for(ll i=0;i<h;i++){cout<<v[i][0];for(ll j=1;j<w;j++)cout spa v[i][j];cout<<endl;}}; void debug(vector<string>&v,ll h,ll w){for(ll i=0;i<h;i++){for(ll j=0;j<w;j++)cout<<v[i][j];cout<<endl;}}; template<typename T>void debug(vector<T>&v,ll n){if(n!=0)cout<<v[0];for(ll i=1;i<n;i++)cout spa v[i];cout<<endl;}; template<typename T>vector<vector<T>>vec(ll x, ll y, T w){vector<vector<T>>v(x,vector<T>(y,w));return v;} ll gcd(ll x,ll y){ll r;while(y!=0&&(r=x%y)!=0){x=y;y=r;}return y==0?x:y;} vector<ll>dx={1,-1,0,0,1,1,-1,-1};vector<ll>dy={0,0,1,-1,1,-1,1,-1}; template<typename T>vector<T> make_v(size_t a,T b){return vector<T>(a,b);} template<typename... Ts>auto make_v(size_t a,Ts... ts){return vector<decltype(make_v(ts...))>(a,make_v(ts...));} template<typename T1, typename T2>ostream &operator<<(ostream &os, const pair<T1, T2>&p){return os << p.first << " " << p.second;} template<typename T>ostream &operator<<(ostream &os, const vector<T> &v){for(auto &z:v)os << z << " ";cout<<"|"; return os;} //mt19937 mt(chrono::steady_clock::now().time_since_epoch().count()); struct Permutation{ ll sz; vector<ll>perm; Permutation(ll sz):sz(sz){ perm.assign(sz,0); iota(perm.begin(),perm.end(),0); } Permutation(vector<ll>&v):sz(v.size()){ perm=v; } ll &operator[](const ll idx){ return perm[idx]; } ll operator[](ll idx)const { return perm[idx]; } //順序に注意! Permutation operator*(const Permutation &p){ Permutation ret(sz); for(ll i=0;i<sz;i++)ret[i]=(*this)[p[i]]; return ret; } Permutation &operator*=(const Permutation &p){ *this = *this * p; return *this; } Permutation &operator^=(ll k){ Permutation ret(sz); Permutation tmp = *this; while(k){ if(k&1)ret *= tmp; tmp *= tmp; k>>=1; } *this = ret; return *this; } Permutation inv(){ Permutation ret(sz); for(ll i=0;i<sz;i++)ret[(*this)[i]]=i; return ret; } }; int main(){ cin.tie(nullptr); ios_base::sync_with_stdio(false); ll res=0,buf=0; bool judge = true; ll n,k;cin>>n>>k; vector<ll>a(n); rep(i,0,n)cin>>a[i]; vector<ll>b(2*n+1); rep(i,0,2*n)b[i+1]=b[i]+a[i%n]; ll ok=0,ng=INF; while(abs(ng-ok)>=2){ ll mid=(ng+ok)/2; vector<ll>p(2*n+2,2*n+1); rep(i,0,2*n){ p[i]=lower_bound(ALL(b),b[i]+mid)-b.begin(); } Permutation q(p); //debug(p,2*n+1); q^=k; ll dif=INF; rep(i,0,n)chmin(dif,q[i]-i); if(dif<=n)ok=mid; else ng=mid; } cout<<ok<<endl; return 0; }