oj.uz

답안 #752040

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
752040 2023-06-02T07:42:14 Z NeroZein Examination (JOI19_examination) C++17
0 / 100
 1175 ms 54688 KB 
#include "bits/stdc++.h"
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;

#ifdef Nero
#include "Deb.h"
#else
#define deb(...)
#endif

const int N = 100005;

template <class T> using Tree = tree<T,null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;

Tree<int> tr[N]; 

void upd (int id, int v) {
  id++; 
  while (id < N) {
    tr[id].insert(v); 
    id += id & -id; 
  }
}

int qry (int id, int v) {
  id++; 
  int ret = 0; 
  while (id) {
    ret += tr[id].size() - tr[id].order_of_key(v);
    id -= id & -id;
  }
  return ret;
}

int qry (int l, int r, int v) {
  return qry(r, v) - qry(l - 1, v); 
}

struct St {
  int a, b, c, id;
  bool operator < (const St& other) {
    return c > other.c; 
  }; 
}; 

int a[N]; 
St s[N], qs[N]; 
int ans[N]; 

signed main(){
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  int n, q;
  cin >> n >> q;
  for (int i = 0; i < n; ++i) {
    cin >> s[i].a >> s[i].b;
    s[i].c = s[i].a + s[i].b; 
    a[i] = s[i].a;
  }
  sort(a, a + n); 
  sort(s, s + n); 
  for (int i = 0; i < n; ++i) {
    s[i].a = lower_bound(a, a + n, s[i].a) - a; 
  }
  for (int i = 0; i < q; ++i) {
    cin >> qs[i].a >> qs[i].b >> qs[i].c;
    qs[i].id = i;
    qs[i].a = lower_bound(a, a + n, qs[i].a) - a; 
  }
  sort(qs, qs + q); 
  for (int i = 0, p = 0; i < q; ++i) {
    while (p < n && s[p].c >= qs[i].c) {
      upd(s[p].a, s[p].b); 
      p++; 
    }
    ans[qs[i].id] = qry(qs[i].a, n - 1, qs[i].b);
  }
  for (int i = 0; i < q; ++i) {
    cout << ans[i] << '\n'; 
  }
  return 0;
}

Subtask #1
0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 8148 KB Output is correct
2 Incorrect 8 ms 8160 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1175 ms 54688 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1175 ms 54688 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 8148 KB Output is correct
2 Incorrect 8 ms 8160 KB Output isn't correct
3 Halted 0 ms 0 KB -