結果

問題 No.1211 円環はお断り
ユーザー ThistleThistle
提出日時 2020-08-24 14:03:17
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 440 ms / 2,000 ms
コード長 7,666 bytes
コンパイル時間 1,850 ms
コンパイル使用メモリ 134,048 KB
実行使用メモリ 68,352 KB
最終ジャッジ日時 2024-05-02 21:21:41
合計ジャッジ時間 11,088 ms
ジャッジサーバーID
(参考情報)
judge5 / judge2
このコードへのチャレンジ
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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 23 ms
34,944 KB
testcase_01 AC 23 ms
34,944 KB
testcase_02 AC 23 ms
34,944 KB
testcase_03 AC 22 ms
34,816 KB
testcase_04 AC 23 ms
34,944 KB
testcase_05 AC 23 ms
34,944 KB
testcase_06 AC 23 ms
34,688 KB
testcase_07 AC 23 ms
34,944 KB
testcase_08 AC 23 ms
34,944 KB
testcase_09 AC 22 ms
35,072 KB
testcase_10 AC 23 ms
34,944 KB
testcase_11 AC 24 ms
34,944 KB
testcase_12 AC 23 ms
34,816 KB
testcase_13 AC 203 ms
52,232 KB
testcase_14 AC 282 ms
58,008 KB
testcase_15 AC 284 ms
57,364 KB
testcase_16 AC 411 ms
67,812 KB
testcase_17 AC 52 ms
37,760 KB
testcase_18 AC 255 ms
54,792 KB
testcase_19 AC 53 ms
37,760 KB
testcase_20 AC 65 ms
38,528 KB
testcase_21 AC 59 ms
38,752 KB
testcase_22 AC 220 ms
52,912 KB
testcase_23 AC 256 ms
55,996 KB
testcase_24 AC 137 ms
46,740 KB
testcase_25 AC 29 ms
35,712 KB
testcase_26 AC 317 ms
59,224 KB
testcase_27 AC 140 ms
46,996 KB
testcase_28 AC 319 ms
59,892 KB
testcase_29 AC 225 ms
54,652 KB
testcase_30 AC 305 ms
60,960 KB
testcase_31 AC 132 ms
45,392 KB
testcase_32 AC 383 ms
65,136 KB
testcase_33 AC 440 ms
68,344 KB
testcase_34 AC 427 ms
68,336 KB
testcase_35 AC 406 ms
68,344 KB
testcase_36 AC 402 ms
68,352 KB
testcase_37 AC 411 ms
68,348 KB
testcase_38 AC 360 ms
68,348 KB
testcase_39 AC 373 ms
68,220 KB
testcase_40 AC 303 ms
68,348 KB
testcase_41 AC 24 ms
34,944 KB
testcase_42 AC 25 ms
34,816 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

#pragma GCC target ("avx")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define _USE_MATH_DEFINES
#include<iostream>
#include<string>
#include<queue>
#include<cmath>
#include<map>
#include<set>
#include<list>
#include<iomanip>
#include<vector>
#include<random>
#include<functional>
#include<algorithm>
#include<stack>
#include<cstdio>
#include<cstring>
#include<bitset>
#include<unordered_map>
#include<climits>
#include<fstream>
#include<complex>
#include<time.h>
#include<cassert>
#include<functional>
#include<numeric>
#include<tuple>
using namespace std;
using ll = long long;
using ld = long double;
#define int long long
#define all(a) (a).begin(),(a).end()
#define fs first
#define sc second
#define xx first
#define yy second.first
#define zz second.second
#define H pair<int, int>
#define P pair<int, pair<int, int>>
#define Q(i,j,k) mkp(i,mkp(j,k))
#define rng(i,s,n) for(int i = (s) ; i < (n) ; i++)
#define rep(i,n) rng(i, 0, (n))
#define mkp make_pair
#define vec vector
#define vi vec<int>
#define pb emplace_back
#define siz(a) (int)(a).size()
#define crdcomp(b) sort(all((b)));(b).erase(unique(all((b))),(b).end())
#define getidx(b,i) (lower_bound(all(b),(i))-(b).begin())
#define ssp(i,n) (i==(int)(n)-1?"\n":" ")
#define ctoi(c) (int)(c-'0')
#define itoc(c) (char)(c+'0')
#define cyes printf("Yes\n")
#define cno printf("No\n")
#define cdf(n) int quetimes_=(n);rep(qq123_,quetimes_)
#define gcj printf("Case #%lld: ",qq123_+1)
#define readv(a,n) a.resize(n,0);rep(i,(n)) a[i]=read()
#define found(a,x) (a.find(x)!=a.end())
//#define endl "\n"
constexpr int mod = (ll)1e9 + 7;
constexpr int Mod = 998244353;
constexpr ld EPS = 1e-10;
constexpr ll inf = (ll)3 * 1e18;
constexpr int Inf = (ll)15 * 1e8;
constexpr int dx[] = { -1,1,0,0 }, dy[] = { 0,0,-1,1 };
template<class T>bool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; }
template<class T>bool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; }
ll read() { ll u, k = scanf("%lld", &u); return u; }
string reads() { string s; cin >> s; return s; }
H readh(short g = 0) { H u; int k = scanf("%lld %lld", &u.fs, &u.sc); if (g == 1) u.fs--, u.sc--; if (g == 2) u.fs--; return u; }
bool ina(H t, int h, int w) { return 0 <= t.fs && t.fs < h && 0 <= t.sc && t.sc < w; }
bool ina(int t, int l, int r) { return l <= t && t < r; }
ll gcd(ll i, ll j) { return j ? gcd(j, i % j) : i; }
ll popcount(ll x) {
    int sum = 0; for (int i = 0; i < 60; i++)if ((1ll << i) & x) sum++;
    return sum;
}
template<typename T>
class csum {
    vec<T> v;
public:
    csum(vec<T>& a) :v(a) { build(); }
    csum(){}
    void init(vec<T>& a) { v = a; build(); }
    void build() {
        for (int i = 1; i < v.size(); i++) v[i] += v[i - 1];
    }
    T a(int l, int r) {
        if (r < l) return 0;
        return v[r] - (l == 0 ? 0 : v[l - 1]);
    }//[l,r]
    T b(int l, int r) {
        return a(l, r - 1);
    }//[l,r)
    T a(pair<int, int>t) {
        return a(t.first, t.second);
    }
    T b(pair<int, int>t) {
        return b(t.first, t.second);
    }
};
class mint {
public:ll v;
      mint(ll v = 0) { s(v % mod + mod); }
      constexpr static int mod = (ll)1e9 + 7;
      constexpr static int fn_ = (ll)2e6 + 5;
      static mint fact[fn_], comp[fn_];
      mint pow(int x) const {
          mint b(v), c(1);
          while (x) {
              if (x & 1) c *= b;
              b *= b;
              x >>= 1;
          }
          return c;
      }
      inline mint& s(int vv) {
          v = vv < mod ? vv : vv - mod;
          return *this;
      }
      inline mint inv()const { return pow(mod - 2); }
      inline mint operator-()const { return mint() - *this; }
      inline mint& operator+=(const mint b) { return s(v + b.v); }
      inline mint& operator-=(const mint b) { return s(v + mod - b.v); }
      inline mint& operator*=(const mint b) { v = v * b.v % mod; return *this; }
      inline mint& operator/=(const mint b) { v = v * b.inv().v % mod; return *this; }
      inline mint operator+(const mint b) const { return mint(v) += b; }
      inline mint operator-(const mint b) const { return mint(v) -= b; }
      inline mint operator*(const mint b) const { return mint(v) *= b; }
      inline mint operator/(const mint b) const { return mint(v) /= b; }
      friend ostream& operator<<(ostream& os, const mint& m) {
          return os << m.v;
      }
      friend istream& operator>>(istream& is, mint& m) {
          int x; is >> x; m = mint(x);
          return is;
      }
      bool operator<(const mint& r)const { return v < r.v; }
      bool operator>(const mint& r)const { return v > r.v; }
      bool operator<=(const mint& r)const { return v <= r.v; }
      bool operator>=(const mint& r)const { return v >= r.v; }
      bool operator==(const mint& r)const { return v == r.v; }
      bool operator!=(const mint& r)const { return v != r.v; }
      explicit operator bool()const { return v; }
      explicit operator int()const { return v; }
      mint comb(mint k) {
          if (k > * this) return mint();
          if (!fact[0]) combinit();
          if (v >= fn_) {
              if (k > * this - k) k = *this - k;
              mint tmp(1);
              for (int i = v; i >= v - k.v + 1; i--) tmp *= mint(i);
              return tmp * comp[k.v];
          }
          return fact[v] * comp[k.v] * comp[v - k.v];
      }//nCk
      mint perm(mint k) {
          if (k > * this) return mint();
          if (!fact[0]) combinit();
          if (v >= fn_) {
              mint tmp(1);
              for (int i = v; i >= v - k.v + 1; i--) tmp *= mint(i);
              return tmp;
          }
          return fact[v] * comp[v - k.v];
      }//nPk
      static void combinit() {
          fact[0] = 1;
          for (int i = 1; i < fn_; i++) fact[i] = fact[i - 1] * mint(i);
          comp[fn_ - 1] = fact[fn_ - 1].inv();
          for (int i = fn_ - 2; i >= 0; i--) comp[i] = comp[i + 1] * mint(i + 1);
      }
}; mint mint::fact[fn_], mint::comp[fn_];
//--------------------------------------------------------------

//---------------------------------------------------------------------

int n, k;
vi a;
void generate() {
        cin >> n >> k;
        rep(i, n) a.pb(read());
}
int table[30][300000];
int solve() {
    int sum = 0;
    rep(i, n) sum += a[i];
    vi b = a;
    rep(i, n) b.pb(a[i]);

    int ok = 0, ng = sum + 1, mid;
    while (ng - ok > 1) {
        rep(i, 2 * n)rep(j, 20)table[j][i] = -1;
        mid = (ok + ng) / 2;
        int r = 0, tmp = 0;
        rep(i, 2 * n) {
            while (r < 2 * n && tmp < mid) tmp += b[r++];
            if (r < 2 * n) table[0][i] = r;//次にどこに行きますか?
            tmp -= b[i];
        }
        rng(i, 0, 20) rep(j, 2 * n) {
            if (~table[i][j] && ~table[i][table[i][j]]) {
                table[i + 1][j] = table[i][table[i][j]];
            }
        }
        rep(i, n) {
            bool flag = 1;
            int t = i, r = k;//kターンまで
            for (int i = 19; i >= 0; i--) {
                if ((r >> i) & 1) {
                    r ^= (1ll << i);
                    if (table[i][t] == -1) {
                        flag = 0;
                        goto loop;
                    }
                    else t = table[i][t];
                }
            }
        loop:;
            if (flag && t <= i + n) {
                ok = mid;
                goto roop;
            }
        }
        ng = mid;
    roop:;
    }
    return ok;
}
signed main() {
    generate();
    int ans = solve();
    cout << ans << endl;
}
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