Submission #309207

#	Time	Username	Problem	Language	Result	Execution time	Memory
309207		caoash	trapezoid (balkan11_trapezoid)	C++14	14 / 100	1094 ms	5368 KiB

trapezoid

#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()

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

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

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);
}

#ifdef LOCAL
using namespace output;
#endif

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n; cin >> n;
    vector<pair<pi, pi>> vals(n);
    for (int i = 0; i < n; i++) {
        cin >> vals[i].f.f >> vals[i].f.s;
        cin >> vals[i].s.f >> vals[i].s.s;
    }
    sort(all(vals), [&](auto x, auto y) {
        return x.f.s < y.f.s;        
    });
    vector<pi> dp(n);
    auto isect = [&] (pi a, pi b) {
        if (a.s > b.s) swap(a, b);
        return a.s < b.f;
    };
    for (int i = 0; i < n; i++) {
        dp[i].f = 1;
        dp[i].s = 1;
        for (int j = 0; j < i; j++) {
            if (isect(vals[i].f, vals[j].f) && isect(vals[i].s, vals[j].s)) {
                if (dp[j].f + 1 > dp[i].f) {
                    dp[i].f = dp[j].f + 1;    
                    dp[i].s = dp[j].s;
                } else if (dp[j].f + 1 == dp[i].f) {
                    dp[i].s += dp[j].s;
                }
            }
        }
    }
    int ans = 0;
    for (int i = 0; i < n; i++) {
        ans = max(ans, dp[i].f);
    }
    ll cnt = 0;
    for (int i = 0; i < n; i++) {
        if (dp[i].f == ans) {
            cnt += dp[i].s;
            cnt %= 30013;
        }
    }
    cout << ans << " " << cnt << '\n';
}

• Subtask 1: 14 / 100