oj.uz

Submission #201045

# Submission time Handle Problem Language Result Execution time Memory
201045 2020-02-09T08:09:48 Z extraterrestrial Examination (JOI19_examination) C++14
2 / 100
 3000 ms 278464 KB 
#include <bits/stdc++.h>
typedef long long ll;
typedef long double ld;
using namespace std;
#define F first
#define S second
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define SZ(x) (int)(x).size()
//#define int ll

struct query {
  int a, b, sum, id;
  query() {};
  query(int a, int b, int sum, int id) : a(a), b(b), sum(sum), id(id) {};
};

const int N = 1e5 + 10;
unordered_map<int, int> t[N];
int ans[N], sz1, sz2;

inline void update(int a, int b) {
  for (int i = a; i <= sz1; i += i & (-i)) {
    for (int j = b; j <= sz2; j += j & (-j)) {
      t[i][j]++;
    }
  }
}

inline int get(int a, int b) {
  int res = 0;
  for (int i = a; i > 0; i -= i & (-i)) {
    for (int j = b; j > 0; j -= j & (-j)) {
      res += t[i][j];
    }
  }
  return res;
}

signed main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  int n, m;
  cin >> n >> m;
  vector<int> a(n), b(n), sa, sb, ss;
  for (int i = 0; i < n; i++) {
    cin >> a[i] >> b[i];
    sa.pb(a[i]);
    sb.pb(b[i]);
    ss.pb(a[i] + b[i]);
  }
  vector<query> que(m);
  for (int i = 0; i < m; i++) {
    cin >> que[i].a >> que[i].b >> que[i].sum;
    que[i].id = i;
    sa.pb(que[i].a);
    sb.pb(que[i].b);
    ss.pb(que[i].sum);
  }
  sort(all(sa));
  sort(all(sb));
  sort(all(ss));
  sa.resize(unique(all(sa)) - sa.begin());
  sb.resize(unique(all(sb)) - sb.begin());
  ss.resize(unique(all(ss)) - ss.begin());
  vector<vector<pair<int, int>>> add(SZ(ss));
  for (int i = 0; i < n; i++) {
    int cs = lower_bound(all(ss), a[i] + b[i]) - ss.begin();
    a[i] = upper_bound(all(sa), a[i]) - sa.begin();
    b[i] = upper_bound(all(sb), b[i]) - sb.begin();
    //cerr << a[i] << ' ' << b[i] << ' ' << cs << '\n';
    add[cs].pb({a[i], b[i]});
  }
  vector<vector<pair<pair<int, int>, int>>> check(SZ(ss));
  for (int i = 0; i < m; i++) {
    que[i].sum = lower_bound(all(ss), que[i].sum) - ss.begin();
    que[i].a = upper_bound(all(sa), que[i].a) - sa.begin();
    que[i].b = upper_bound(all(sb), que[i].b) - sb.begin();
    //cout << que[i].a << ' ' << que[i].b << ' ' << que[i].sum << '\n';
    check[que[i].sum].pb(make_pair(make_pair(que[i].a, que[i].b), que[i].id));
  }
  sz1 = SZ(sa), sz2 = SZ(sb);
  for (int i = SZ(ss) - 1; i >= 0; i--) {
    for (auto it : add[i]) {
      update(SZ(sa) - it.F + 1, SZ(sb) - it.S + 1);
    }
    for (auto it : check[i]) {
      ans[it.S] = get(SZ(sa) - it.F.F + 1, SZ(sb) - it.F.S + 1);
    }
  }
  for (int i = 0; i < m; i++) {
    cout << ans[i] << '\n';
  }
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 5880 KB Output is correct
2 Correct 8 ms 5752 KB Output is correct
3 Correct 8 ms 5752 KB Output is correct
4 Correct 9 ms 5880 KB Output is correct
5 Correct 8 ms 5752 KB Output is correct
6 Correct 9 ms 5752 KB Output is correct
7 Correct 51 ms 13048 KB Output is correct
8 Correct 49 ms 13048 KB Output is correct
9 Correct 51 ms 13048 KB Output is correct
10 Correct 18 ms 7452 KB Output is correct
11 Correct 21 ms 7416 KB Output is correct
12 Correct 12 ms 6136 KB Output is correct
13 Correct 44 ms 12796 KB Output is correct
14 Correct 50 ms 12792 KB Output is correct
15 Correct 43 ms 12792 KB Output is correct
16 Correct 14 ms 6524 KB Output is correct
17 Correct 16 ms 6904 KB Output is correct
18 Correct 11 ms 6136 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3092 ms 278464 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3092 ms 278464 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 5880 KB Output is correct
2 Correct 8 ms 5752 KB Output is correct
3 Correct 8 ms 5752 KB Output is correct
4 Correct 9 ms 5880 KB Output is correct
5 Correct 8 ms 5752 KB Output is correct
6 Correct 9 ms 5752 KB Output is correct
7 Correct 51 ms 13048 KB Output is correct
8 Correct 49 ms 13048 KB Output is correct
9 Correct 51 ms 13048 KB Output is correct
10 Correct 18 ms 7452 KB Output is correct
11 Correct 21 ms 7416 KB Output is correct
12 Correct 12 ms 6136 KB Output is correct
13 Correct 44 ms 12796 KB Output is correct
14 Correct 50 ms 12792 KB Output is correct
15 Correct 43 ms 12792 KB Output is correct
16 Correct 14 ms 6524 KB Output is correct
17 Correct 16 ms 6904 KB Output is correct
18 Correct 11 ms 6136 KB Output is correct
19 Execution timed out 3092 ms 278464 KB Time limit exceeded
20 Halted 0 ms 0 KB -