oj.uz

Submission #329269

# Submission time Handle Problem Language Result Execution time Memory
329269 2020-11-20T03:47:49 Z VROOM_VARUN Examination (JOI19_examination) C++14
22 / 100
 3000 ms 416248 KB 
/*
ID: varunra2
LANG: C++
TASK: exam
*/

#include <bits/stdc++.h>
using namespace std;

#ifdef DEBUG
#include "lib/debug.h"
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#define debug_arr(...) \
  cerr << "[" << #__VA_ARGS__ << "]:", debug_arr(__VA_ARGS__)
#pragma GCC diagnostic ignored "-Wsign-compare"
//#pragma GCC diagnostic ignored "-Wunused-parameter"
//#pragma GCC diagnostic ignored "-Wunused-variable"
#else
#define debug(...) 42
#endif

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

using ordered_set_less = tree<int, null_type, less<int>, rb_tree_tag,
                              tree_order_statistics_node_update>;
using ordered_set_equal = tree<int, null_type, less_equal<int>, rb_tree_tag,
                               tree_order_statistics_node_update>;
using ordered_map =
    tree<int, int, less<int>, rb_tree_tag, tree_order_statistics_node_update>;
const int RANDOM =
    chrono::high_resolution_clock::now().time_since_epoch().count();
struct chash {
  int operator()(int x) const { return x ^ RANDOM; }
};
gp_hash_table<int, int, chash> table;

// #define int long long

#define EPS 1e-9
#define IN(A, B, C) assert(B <= A && A <= C)
#define INF (int)1e9
#define MEM(a, b) memset(a, (b), sizeof(a))
#define MOD 1000000007
#define MP make_pair
#define PB push_back
#define all(cont) cont.begin(), cont.end()
#define rall(cont) cont.end(), cont.begin()
#define x first
#define y second

const double PI = acos(-1.0);
typedef long long ll;
typedef long double ld;
typedef pair<int, int> PII;
typedef map<int, int> MPII;
typedef multiset<int> MSETI;
typedef set<int> SETI;
typedef set<string> SETS;
typedef vector<int> VI;
typedef vector<PII> VII;
typedef vector<VI> VVI;
typedef vector<string> VS;

#define rep(i, a, b) for (int i = a; i < (b); ++i)
#define trav(a, x) for (auto& a : x)
#define sz(x) (int)(x).size()
typedef pair<int, int> pii;
typedef vector<int> vi;
#pragma GCC diagnostic ignored "-Wsign-compare"
// util functions

const int maxn = 1e5;

const int MAX = 4 * maxn + 5;

int cnt = 0;

struct sparsebit {
  vector<gp_hash_table<int, int, chash>> fen;
  int tot = 0;
  void upd(int x, int y, int val) {
    tot += val;
    for (int i = x; i <= MAX; i += (i & -i)) {
      for (int j = y; j <= MAX; j += (j & -j)) {
        // debug(i, j, 1);
        // cnt++;
        fen[i][j] += val;
      }
    }
  }

  int qry(int x, int y) {
    int ret = 0;
    for (int i = x; i > 0; i -= (i & -i)) {
      for (int j = y; j > 0; j -= (j & -j)) {
        // cnt++;
        ret += fen[i][j];
      }
    }
    return ret;
  }

  int qry(int a, int b, int c, int d) {
    int ret = 0;
    ret += tot;
    if (a) ret -= qry(a - 1, d);
    if (b) ret -= qry(c, b - 1);
    if (a and b) ret += qry(a - 1, b - 1);
    return ret;
  }

  void init() { fen.resize(MAX + 1); }
};

MPII comp;

void compress(VI vals) {
  sort(all(vals));
  vals.resize(unique(all(vals)) - vals.begin());
  for (int i = 0; i < sz(vals); i++) {
    comp[vals[i]] = i + 2;
  }
  debug(sz(vals));
}

int32_t main() {
  // #ifndef ONLINE_JUDGE
  // freopen("exam.in", "r", stdin);
  // freopen("exam.out", "w", stdout);
  // #endif
  cin.sync_with_stdio(0);
  cin.tie(0);

  int n, q;
  cin >> n >> q;

  VVI vals(n);
  VVI qrys(q);

  VI cmp;

  for (int i = 0; i < n; i++) {
    int s, t;
    cin >> s >> t;
    vals[i] = {s + t, s, t};
    cmp.PB(s);
    cmp.PB(t);
  }

  for (int i = 0; i < q; i++) {
    int x, y, z;
    cin >> x >> y >> z;
    qrys[i] = {z, x, y, i};
    cmp.PB(x);
    cmp.PB(y);
  }

  compress(cmp);

  sort(all(vals));
  sort(all(qrys));

  sparsebit bit;
  bit.init();

  reverse(all(vals));
  reverse(all(qrys));

  int p1 = 0;

  VI ret(q, 0);

  for (int i = 0; i < q; i++) {
    while (p1 < n and vals[p1][0] >= qrys[i][0]) {
      bit.upd(comp[vals[p1][1]], comp[vals[p1][2]], 1);
      p1++;
    }
    ret[qrys[i][3]] = bit.qry(comp[qrys[i][1]], comp[qrys[i][2]], MAX, MAX);
  }

  for (int i = 0; i < q; i++) {
    cout << ret[i] << '\n';
  }

  // debug(cnt);

  return 0;
}

Compilation message

examination.cpp: In function 'void compress(VI)':
examination.cpp:19:20: warning: statement has no effect [-Wunused-value]
   19 | #define debug(...) 42
      |                    ^~
examination.cpp:125:3: note: in expansion of macro 'debug'
  125 |   debug(sz(vals));
      |   ^~~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 89 ms 84972 KB Output is correct
2 Correct 92 ms 84972 KB Output is correct
3 Correct 85 ms 84972 KB Output is correct
4 Correct 92 ms 84972 KB Output is correct
5 Correct 87 ms 84844 KB Output is correct
6 Correct 95 ms 84972 KB Output is correct
7 Correct 157 ms 96876 KB Output is correct
8 Correct 157 ms 96876 KB Output is correct
9 Correct 156 ms 96748 KB Output is correct
10 Correct 135 ms 89324 KB Output is correct
11 Correct 118 ms 89000 KB Output is correct
12 Correct 118 ms 85288 KB Output is correct
13 Correct 151 ms 97004 KB Output is correct
14 Correct 151 ms 97260 KB Output is correct
15 Correct 153 ms 97004 KB Output is correct
16 Correct 113 ms 88556 KB Output is correct
17 Correct 130 ms 88940 KB Output is correct
18 Correct 121 ms 85228 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2761 ms 415960 KB Output is correct
2 Correct 2707 ms 415360 KB Output is correct
3 Correct 2709 ms 416248 KB Output is correct
4 Correct 1402 ms 172916 KB Output is correct
5 Correct 749 ms 192144 KB Output is correct
6 Correct 887 ms 99656 KB Output is correct
7 Correct 2418 ms 375648 KB Output is correct
8 Correct 2371 ms 375104 KB Output is correct
9 Correct 2088 ms 322112 KB Output is correct
10 Correct 670 ms 187736 KB Output is correct
11 Correct 1254 ms 155972 KB Output is correct
12 Correct 976 ms 99240 KB Output is correct

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2761 ms 415960 KB Output is correct
2 Correct 2707 ms 415360 KB Output is correct
3 Correct 2709 ms 416248 KB Output is correct
4 Correct 1402 ms 172916 KB Output is correct
5 Correct 749 ms 192144 KB Output is correct
6 Correct 887 ms 99656 KB Output is correct
7 Correct 2418 ms 375648 KB Output is correct
8 Correct 2371 ms 375104 KB Output is correct
9 Correct 2088 ms 322112 KB Output is correct
10 Correct 670 ms 187736 KB Output is correct
11 Correct 1254 ms 155972 KB Output is correct
12 Correct 976 ms 99240 KB Output is correct
13 Execution timed out 3113 ms 416004 KB Time limit exceeded
14 Halted 0 ms 0 KB -

Subtask #4
0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 89 ms 84972 KB Output is correct
2 Correct 92 ms 84972 KB Output is correct
3 Correct 85 ms 84972 KB Output is correct
4 Correct 92 ms 84972 KB Output is correct
5 Correct 87 ms 84844 KB Output is correct
6 Correct 95 ms 84972 KB Output is correct
7 Correct 157 ms 96876 KB Output is correct
8 Correct 157 ms 96876 KB Output is correct
9 Correct 156 ms 96748 KB Output is correct
10 Correct 135 ms 89324 KB Output is correct
11 Correct 118 ms 89000 KB Output is correct
12 Correct 118 ms 85288 KB Output is correct
13 Correct 151 ms 97004 KB Output is correct
14 Correct 151 ms 97260 KB Output is correct
15 Correct 153 ms 97004 KB Output is correct
16 Correct 113 ms 88556 KB Output is correct
17 Correct 130 ms 88940 KB Output is correct
18 Correct 121 ms 85228 KB Output is correct
19 Correct 2761 ms 415960 KB Output is correct
20 Correct 2707 ms 415360 KB Output is correct
21 Correct 2709 ms 416248 KB Output is correct
22 Correct 1402 ms 172916 KB Output is correct
23 Correct 749 ms 192144 KB Output is correct
24 Correct 887 ms 99656 KB Output is correct
25 Correct 2418 ms 375648 KB Output is correct
26 Correct 2371 ms 375104 KB Output is correct
27 Correct 2088 ms 322112 KB Output is correct
28 Correct 670 ms 187736 KB Output is correct
29 Correct 1254 ms 155972 KB Output is correct
30 Correct 976 ms 99240 KB Output is correct
31 Execution timed out 3113 ms 416004 KB Time limit exceeded
32 Halted 0 ms 0 KB -