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답안 #316771

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
316771 2020-10-28T01:10:01 Z caoash Kralj (COCI16_kralj) C++14
0 / 140
 317 ms 49016 KB 
#include <bits/stdc++.h> 
using namespace std;

using ll = long long;

using vi = vector<int>;
using vl = vector<ll>;
#define pb push_back
#define rsz resize
#define all(x) begin(x), end(x)
#define sz(x) (int)(x).size()
#define lb lower_bound

using pi = pair<int,int>;
#define f first
#define s second
#define mp make_pair

namespace output {
  void pr(int x) {
    cout << x;
  }
  void pr(long x) {
    cout << x;
  }
  void pr(ll x) {
    cout << x;
  }
  void pr(unsigned x) {
    cout << x;
  }
  void pr(unsigned long x) {
    cout << x;
  }
  void pr(unsigned long long x) {
    cout << x;
  }
  void pr(float x) {
    cout << x;
  }
  void pr(double x) {
    cout << x;
  }
  void pr(long double x) {
    cout << x;
  }
  void pr(char x) {
    cout << x;
  }
  void pr(const char * x) {
    cout << x;
  }
  void pr(const string & x) {
    cout << x;
  }
  void pr(bool x) {
    pr(x ? "true" : "false");
  }

  template < class T1, class T2 > void pr(const pair < T1, T2 > & x);
  template < class T > void pr(const T & x);

  template < class T, class...Ts > void pr(const T & t,
    const Ts & ...ts) {
    pr(t);
    pr(ts...);
  }
  template < class T1, class T2 > void pr(const pair < T1, T2 > & x) {
    pr("{", x.f, ", ", x.s, "}");
  }
  template < class T > void pr(const T & x) {
    pr("{"); // const iterator needed for vector<bool>
    bool fst = 1;
    for (const auto & a: x) pr(!fst ? ", " : "", a), fst = 0;
    pr("}");
  }

  void ps() {
    pr("\n");
  } // print w/ spaces
  template < class T, class...Ts > void ps(const T & t,
    const Ts & ...ts) {
    pr(t);
    if (sizeof...(ts)) pr(" ");
    ps(ts...);
  }

  void pc() {
    cout << "]" << endl;
  } // debug w/ commas
  template < class T, class...Ts > void pc(const T & t,
    const Ts & ...ts) {
    pr(t);
    if (sizeof...(ts)) pr(", ");
    pc(ts...);
  }
  #define dbg(x...) pr("[", #x, "] = ["), pc(x);
}

#ifndef ONLINE_JUDGE
using namespace output;
#else
using namespace output;
#define dbg(x...)
#endif

const int MX = 200005;
const int MOD = (int) (1e9 + 7);
const ll INF = (ll) 1e18;

template < int SZ > struct DSU {
  int p[SZ], en[SZ];
  void init() {
    for (int i = 0; i < SZ; i++) {
      p[i] = i;
      en[i] = i;
    }
  }
  int find(int x) {
    return p[x] = (p[x] == x ? x : find(p[x]));
  }
  void merge(int u, int v) {
    int a = find(u);
    int b = find(v);
    if (a != b) {
      p[b] = a;
      en[a] = en[b];
    }
  }
};

bool marked[MX];
DSU<MX> dsu;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n; cin >> n;
    vector<vi> a(n); 
    vi sx(n), sy(n);
    for (int i = 0; i < n; i++) {
        int x; cin >> x;
        a[x - 1].pb(i);
    }
    for (int i = 0; i < n; i++) cin >> sx[i];
    for (int i = 0; i < n; i++) cin >> sy[i];
    dsu.init();
    set<int> vals;
    auto mark = [&] (int i) {
        marked[i] = true;
        int prev = (i - 1 + n) % n;
        int nxt = (i + 1) % n;
        if (marked[prev]) {
            dsu.merge(prev, i);
        }
        if (marked[nxt]) {
            dsu.merge(i, nxt);
        }
    };
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < sz(a[i]); j++) {
            if (!marked[i]) {
                mark(i);
            } else {
                int lst = dsu.en[dsu.find(i)];
                mark((lst + 1) % n);
            }
        }
    }
    int st = (dsu.en[dsu.find(0)] + 1) % n;
    rotate(a.begin(), a.begin() + st, a.end());
    rotate(sx.begin(), sx.begin() + st, sx.end());
    set<int> dudes;
    int ans = 0;
    for (int i = 0; i < n; i++) {
        // dbg(i, a[i]);
        for (auto x : a[i]) dudes.insert(sy[x]);
        auto it = dudes.lb(sx[i]);
        if (it == dudes.end()) {
            dudes.erase(dudes.begin());
        } else {
            ++ans;
            dudes.erase(it);
        }
    }
    cout << ans << '\n';
}

Subtask #1
0 / 140.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 146 ms 32492 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Runtime error 141 ms 31852 KB Execution killed with signal 11 (could be triggered by violating memory limits)
3 Runtime error 174 ms 38764 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Runtime error 179 ms 39660 KB Execution killed with signal 11 (could be triggered by violating memory limits)
5 Runtime error 232 ms 39416 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Runtime error 260 ms 40204 KB Execution killed with signal 11 (could be triggered by violating memory limits)
7 Runtime error 299 ms 46712 KB Execution killed with signal 11 (could be triggered by violating memory limits)
8 Runtime error 271 ms 43900 KB Execution killed with signal 11 (could be triggered by violating memory limits)
9 Runtime error 317 ms 49016 KB Execution killed with signal 11 (could be triggered by violating memory limits)
10 Runtime error 286 ms 43848 KB Execution killed with signal 11 (could be triggered by violating memory limits)