oj.uz

Submission #708136

# Submission time Handle Problem Language Result Execution time Memory
708136 2023-03-11T06:15:26 Z swagchicken trapezoid (balkan11_trapezoid) C++14
26 / 100
 89 ms 5992 KB 
#include <iostream>
#include <tuple>
#include <cmath>
#include <string>
#include <cstring>
#include <vector>
#include <deque>
#include <queue>
#include <stack>
#include <random>
#include <map>
#include <unordered_map>
#include <set>
#include <unordered_set>
#include <algorithm>
#include <vector>
#include <fstream>
#include <iomanip>
#include <ctime>
#include <cctype>
#include <climits>
#include <chrono>
 
using namespace std;
 
typedef long long ll;
typedef vector<int> vi;
typedef vector< vector <int> > vvi;
typedef pair<int, int> pii;
typedef pair < pair < int, int >, int > piii;
typedef pair < pair <int, int > , pair <int, int> > piiii;
typedef pair<ll, ll> pll;
typedef vector<bool> vb;
typedef vector<char> vc;
typedef vector<string> vs;
 
#define FOR(i,a,b) for(int i = a; i < b; i ++)
#define RFOR(i,a,b) for(int i = a-1; i >= b; i --)
#define all(a) a.begin(), a.end()
#define endl '\n';
#define sz(x) (int)(x).size()
 
#define mp make_pair
#define pb push_back
#define ff first
#define ss second
 
template <typename T>
void pr(vector<T> &v) {
    FOR(i, 0, sz(v)) cout << v[i] << " ";
    cout << endl;
}
template <typename T>
void pr(vector<vector<T> > &v) {
    FOR(i, 0, sz(v)) { pr(v[i]); }
}
template <typename T>
void re(T &x) {
    cin >> x;
}
template <typename T>
void re(vector<T> &a) {
    FOR(i, 0, sz(a)) re(a[i]);
}
template <class Arg, class... Args>
void re(Arg &first, Args &... rest) {
    re(first);
    re(rest...);
}
template <typename T>
void pr(T x) {
    cout << x << endl;
}
template <class Arg, class... Args>
void pr(const Arg &first, const Args &... rest) {
    cout << first << " ";
    pr(rest...);
    cout << endl;
}
void ps() { cout << endl; }
template<class T, class... Ts>
void ps(const T& t, const Ts&... ts) {
    cout << t; if (sizeof...(ts)) cout << " "; ps(ts...);
}
 
const ll MOD  = 998244353;
#define inf 1e18;
#define INF INT_MAX

long double PI = 4*atan(1);
long double eps = 1e-12;


template<class T>
class FenwickTree {
    private:
        vector<T> ft;
    public:
        FenwickTree(int m) {
            ft.assign(m + 1, 0);
        }
        
        int LSOne(int x) {
            return x & (-x);
        }

        T RMQ(int j) {
            // this allows array to be 0 indexed while ft is 1 indexed
            j++;
            int maxv = 0;
            for(; j > 0; j -= LSOne(j)) {
                maxv = max(maxv, ft[j]);
            }
            return maxv;
        }
      
        
        void update(int i, T v) {
            i++;
            for(; i < ft.size(); i += LSOne(i)) {
                ft[i] = max(ft[i], v);
            }
        }
};


struct QS {
  int idx, x, y, add;
};

bool cmp(const QS &a, const QS &b) {
  return a.x < b.x;
}

int main() {
    //auto start = chrono::high_resolution_clock::now();
    ios_base::sync_with_stdio(0);cin.tie(0);
    //ofstream cout("output.txt");
    //ifstream cin("input.txt");
    #ifdef DEBUG
      freopen("input.txt", "r", stdin);
      freopen("output.txt", "w", stdout);
    #endif  

    int n; cin >> n;
    vector<int> botv;
    vector<QS> allq;
    FOR(i,0,n) {
      int a,b,c,d; cin >> a >> b >> c >> d;
      botv.pb(c);
      botv.pb(d);
      allq.pb({i, a, c, 0});
      allq.pb({i, b, d, 1});
    }

    sort(all(botv));

    botv.erase(unique(all(botv)), botv.end());
    for(QS &q : allq) {
      q.y = lower_bound(all(botv), q.y) - botv.begin() + 1;
    }

    sort(all(allq), cmp);
    
    FenwickTree<int> st(210000);

    vector<int> ans(n+5);

    for(QS q : allq) {
   //   cout << q.x << " " << q.y << " " << q.idx << " " << q.add << endl;
      if(q.add == 0) {
        int val = st.RMQ(q.y);
        ans[q.idx] = val + 1;
      } else {
        st.update(q.y, ans[q.idx]);
      }
    }

    int res = st.RMQ(210000);
    cout << res << " " << -1 << endl;


    //auto stop = chrono::high_resolution_clock::now();
    //auto duration = chrono::duration_cast<chrono::microseconds>(stop - start);
    //cout << duration.count() << endl;
    //cin.close();
    //cout.close();
}

Compilation message

trapezoid.cpp: In instantiation of 'void FenwickTree<T>::update(int, T) [with T = int]':
trapezoid.cpp:175:34:   required from here
trapezoid.cpp:120:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  120 |             for(; i < ft.size(); i += LSOne(i)) {
      |                   ~~^~~~~~~~~~~

Subtask #1
26.0 / 100.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 1108 KB Partially correct
2 Partially correct 2 ms 1108 KB Partially correct
3 Partially correct 1 ms 1108 KB Partially correct
4 Partially correct 1 ms 1108 KB Partially correct
5 Partially correct 2 ms 1236 KB Partially correct
6 Partially correct 3 ms 1364 KB Partially correct
7 Partially correct 4 ms 1364 KB Partially correct
8 Partially correct 5 ms 1492 KB Partially correct
9 Partially correct 11 ms 1616 KB Partially correct
10 Partially correct 16 ms 2124 KB Partially correct
11 Partially correct 27 ms 2332 KB Partially correct
12 Partially correct 48 ms 3556 KB Partially correct
13 Partially correct 54 ms 3904 KB Partially correct
14 Incorrect 62 ms 5952 KB Output isn't correct
15 Incorrect 64 ms 5992 KB Output isn't correct
16 Incorrect 73 ms 5960 KB Output isn't correct
17 Incorrect 82 ms 5900 KB Output isn't correct
18 Incorrect 79 ms 5908 KB Output isn't correct
19 Incorrect 80 ms 5992 KB Output isn't correct
20 Incorrect 89 ms 5872 KB Output isn't correct