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답안 #329261

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
329261 2020-11-20T01:01:19 Z VROOM_VARUN Examination (JOI19_examination) C++17
2 / 100
 3000 ms 186560 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

// #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;

struct sparsebit {
  map<int, MPII> fen;
  void upd(int x, int y, int val) {
    for (int i = x; i <= MAX; i += (i & -i)) {
      for (int j = y; j <= MAX; j += (j & -j)) {
        // debug(i, j, 1);
        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)) {
        ret += fen[i][j];
      }
    }
    return ret;
  }

  int qry(int a, int b, int c, int d) {
    int ret = 0;
    ret += qry(c, d);
    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;
  }
};

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;
  }
}

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;

  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';
  }

  return 0;
}

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 198 ms 17132 KB Output is correct
8 Correct 195 ms 17024 KB Output is correct
9 Correct 201 ms 17172 KB Output is correct
10 Correct 81 ms 6764 KB Output is correct
11 Correct 101 ms 6380 KB Output is correct
12 Correct 33 ms 768 KB Output is correct
13 Correct 170 ms 17152 KB Output is correct
14 Correct 168 ms 17004 KB Output is correct
15 Correct 170 ms 17132 KB Output is correct
16 Correct 79 ms 5996 KB Output is correct
17 Correct 77 ms 6636 KB Output is correct
18 Correct 29 ms 748 KB Output is correct

Subtask #2
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 3110 ms 186560 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 3110 ms 186560 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 198 ms 17132 KB Output is correct
8 Correct 195 ms 17024 KB Output is correct
9 Correct 201 ms 17172 KB Output is correct
10 Correct 81 ms 6764 KB Output is correct
11 Correct 101 ms 6380 KB Output is correct
12 Correct 33 ms 768 KB Output is correct
13 Correct 170 ms 17152 KB Output is correct
14 Correct 168 ms 17004 KB Output is correct
15 Correct 170 ms 17132 KB Output is correct
16 Correct 79 ms 5996 KB Output is correct
17 Correct 77 ms 6636 KB Output is correct
18 Correct 29 ms 748 KB Output is correct
19 Execution timed out 3110 ms 186560 KB Time limit exceeded
20 Halted 0 ms 0 KB -