oj.uz

Submission #708133

# Submission time Handle Problem Language Result Execution time Memory
708133 2023-03-11T06:14:50 Z swagchicken trapezoid (balkan11_trapezoid) C++14
0 / 100
 156 ms 9924 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
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 1108 KB Output isn't correct
2 Incorrect 1 ms 1108 KB Output isn't correct
3 Incorrect 1 ms 1108 KB Output isn't correct
4 Incorrect 2 ms 1236 KB Output isn't correct
5 Incorrect 4 ms 1236 KB Output isn't correct
6 Incorrect 5 ms 1364 KB Output isn't correct
7 Incorrect 6 ms 1480 KB Output isn't correct
8 Incorrect 7 ms 1632 KB Output isn't correct
9 Incorrect 15 ms 2000 KB Output isn't correct
10 Incorrect 31 ms 2912 KB Output isn't correct
11 Incorrect 46 ms 3460 KB Output isn't correct
12 Incorrect 102 ms 5564 KB Output isn't correct
13 Incorrect 86 ms 6472 KB Output isn't correct
14 Incorrect 101 ms 7292 KB Output isn't correct
15 Incorrect 111 ms 7732 KB Output isn't correct
16 Incorrect 119 ms 8064 KB Output isn't correct
17 Incorrect 128 ms 8580 KB Output isn't correct
18 Incorrect 125 ms 9028 KB Output isn't correct
19 Incorrect 138 ms 9420 KB Output isn't correct
20 Incorrect 156 ms 9924 KB Output isn't correct