oj.uz

Submission #364407

# Submission time Handle Problem Language Result Execution time Memory
364407 2021-02-09T05:33:11 Z Kevin_Zhang_TW Fortune Telling 2 (JOI14_fortune_telling2) C++17
35 / 100
 3000 ms 9964 KB 
//#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pb emplace_back
#define AI(i) begin(i), end(i)
template<class T> bool chmin(T &a, T b) { return b < a && (a = b, true); }
template<class T> bool chmax(T &a, T b) { return a < b && (a = b, true); }
#ifdef KEV
#define DE(args...) kout("[ " + string(#args) + " ] = ", args)
void kout() { cerr << endl; }
template<class T, class ...U> void kout(T a, U ...b) {  cerr << a << ' ', kout(b...); }
template<class T> void debug(T L, T R) { while (L != R) cerr << *L << " \n"[next(L) == R], ++L; }
#else
#define DE(...) 0
#define debug(...) 0
#endif

const int MAX_N = 200010, SQ = 600;

int a[MAX_N], b[MAX_N], mt[MAX_N], n, m;

struct ASK {
	int a, b, c, d;
}qry[MAX_N];
bool operator < (ASK a, ASK b) {
	int l1 = a.c, r1 = a.d;
	int l2 = b.c, r2 = b.d;
	int aid = l1 / SQ, bid = l2 / SQ;
	if (aid != bid) return aid < bid;
	return (r1 < r2) ^ (aid & 1);
}
pair<int,int> lisan[MAX_N];

struct DS {
	int sum[SQ], cnt[MAX_N], all, n;
	void add(int i, int d) {
		sum[i / SQ] += d;
		cnt[i] += d;
		all += d;
	}
	int find_mx() {
		for (int i = n;i >= 0;--i) if (cnt[i]) return i;
		return -1;
		int id = n / SQ;
		int RB = id * SQ;
		for (int i = n;i >= RB;--i)
			if (cnt[i]) return i;
		for (int i = id - 1;i >= 0;--i)
			if (sum[i]) for (int j = (i * SQ) - 1;;--j)
				if (cnt[j]) return j;
		return -1;
	}
	int getsum(int l, int r) {
		{
			int res = 0;
			for (int i = l;i <= r;++i) res += cnt[i];
			return res;
		}
		assert(r == n);
		int res = all;
		--l;
		int lid = l / SQ;
		for (int i = 0;i < lid;++i) res -= sum[i];
		for (int i = lid * SQ;i <= l;++i) res -= cnt[i];
		return res;
	}
}RMQ[3];

int sum[MAX_N];
array<int, 3> getnxt() {
	int p = RMQ[1].find_mx();
	int v = RMQ[2].getsum(p + 1, m) & 1;
	DE(p, v);
	if (p != -1) {
		if (v == 1) return {-1, 1, 1};
		else return {-1, 2, 2};
	}
	if (v == 1) return {-1, 2, 1};
	else return {-1, 1, 2};
}
ll solveall() {
	sort(qry, qry + n);
	ll res = 0;

	RMQ[1].n = RMQ[2].n = m;

	auto addin = [&](int pos, int d) {
		int rp = lisan[pos].second;
		if (sum[pos]) RMQ[ sum[pos] ].add(rp, -1);
		sum[pos] += d;
		if (sum[pos]) RMQ[ sum[pos] ].add(rp, 1);

	};
	int cl = m, cr = m;

	for (int i = 0;i < n;++i) {
		auto [a, b, l, r] = qry[i];
		while (cl > l) addin(--cl, 1);
		while (cr > r) addin(--cr, 1);
		while (cr < r) addin(cr++,-1);
		while (cl < l) addin(cl++,-1);
		auto ret = getnxt();
		DE(ret[1], ret[2]);
		ll ans ;
		if (a <= b) ans = ret[1] == 1 ? min(a, b) : max(a, b);
		else ans = ret[2] == 1 ? min(a, b) : max(a, b);
		res += ans;
	}
	return res;
}
int32_t main() {
	cin.tie(0)->sync_with_stdio(0);
	cin >> n >> m;
	for (int i = 0;i < n;++i)
		cin >> a[i] >> b[i];
	for (int i = 0;i < m;++i) {
		cin >> mt[i];
		lisan[i] = {mt[i], i};
	}
	sort(lisan, lisan + m);
	for (int i = 0;i < n;++i) {
		int c = a[i], d = b[i];
		if (c > d) swap(c, d);
		c = lower_bound(lisan, lisan + m, make_pair(c, -1)) - lisan;
		d = lower_bound(lisan, lisan + m, make_pair(d, -1)) - lisan;
		qry[i] = {a[i], b[i], c, d};
	}
	cout << solveall() << '\n';
}

Compilation message

fortune_telling2.cpp: In function 'std::array<int, 3> getnxt()':
fortune_telling2.cpp:15:17: warning: statement has no effect [-Wunused-value]
   15 | #define DE(...) 0
      |                 ^
fortune_telling2.cpp:74:2: note: in expansion of macro 'DE'
   74 |  DE(p, v);
      |  ^~
fortune_telling2.cpp: In function 'll solveall()':
fortune_telling2.cpp:15:17: warning: statement has no effect [-Wunused-value]
   15 | #define DE(...) 0
      |                 ^
fortune_telling2.cpp:104:3: note: in expansion of macro 'DE'
  104 |   DE(ret[1], ret[2]);
      |   ^~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 2 ms 492 KB Output is correct
4 Correct 2 ms 492 KB Output is correct
5 Correct 2 ms 492 KB Output is correct
6 Correct 2 ms 492 KB Output is correct
7 Correct 2 ms 492 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 2 ms 492 KB Output is correct
12 Correct 2 ms 492 KB Output is correct
13 Correct 2 ms 492 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 2 ms 492 KB Output is correct
4 Correct 2 ms 492 KB Output is correct
5 Correct 2 ms 492 KB Output is correct
6 Correct 2 ms 492 KB Output is correct
7 Correct 2 ms 492 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 2 ms 492 KB Output is correct
12 Correct 2 ms 492 KB Output is correct
13 Correct 2 ms 492 KB Output is correct
14 Correct 21 ms 876 KB Output is correct
15 Correct 46 ms 1260 KB Output is correct
16 Correct 73 ms 1920 KB Output is correct
17 Correct 103 ms 2228 KB Output is correct
18 Correct 93 ms 2284 KB Output is correct
19 Correct 83 ms 2412 KB Output is correct
20 Correct 85 ms 2284 KB Output is correct
21 Correct 78 ms 2284 KB Output is correct
22 Correct 23 ms 2284 KB Output is correct
23 Correct 24 ms 2284 KB Output is correct
24 Correct 25 ms 2284 KB Output is correct
25 Correct 24 ms 2284 KB Output is correct
26 Correct 682 ms 2156 KB Output is correct
27 Correct 837 ms 2412 KB Output is correct
28 Correct 817 ms 2412 KB Output is correct
29 Correct 1453 ms 2412 KB Output is correct

Subtask #3
0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 2 ms 492 KB Output is correct
4 Correct 2 ms 492 KB Output is correct
5 Correct 2 ms 492 KB Output is correct
6 Correct 2 ms 492 KB Output is correct
7 Correct 2 ms 492 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 2 ms 492 KB Output is correct
12 Correct 2 ms 492 KB Output is correct
13 Correct 2 ms 492 KB Output is correct
14 Correct 21 ms 876 KB Output is correct
15 Correct 46 ms 1260 KB Output is correct
16 Correct 73 ms 1920 KB Output is correct
17 Correct 103 ms 2228 KB Output is correct
18 Correct 93 ms 2284 KB Output is correct
19 Correct 83 ms 2412 KB Output is correct
20 Correct 85 ms 2284 KB Output is correct
21 Correct 78 ms 2284 KB Output is correct
22 Correct 23 ms 2284 KB Output is correct
23 Correct 24 ms 2284 KB Output is correct
24 Correct 25 ms 2284 KB Output is correct
25 Correct 24 ms 2284 KB Output is correct
26 Correct 682 ms 2156 KB Output is correct
27 Correct 837 ms 2412 KB Output is correct
28 Correct 817 ms 2412 KB Output is correct
29 Correct 1453 ms 2412 KB Output is correct
30 Correct 378 ms 5352 KB Output is correct
31 Correct 474 ms 6380 KB Output is correct
32 Correct 584 ms 7532 KB Output is correct
33 Correct 785 ms 9836 KB Output is correct
34 Correct 45 ms 5100 KB Output is correct
35 Correct 784 ms 9816 KB Output is correct
36 Correct 787 ms 9796 KB Output is correct
37 Correct 779 ms 9964 KB Output is correct
38 Correct 527 ms 9836 KB Output is correct
39 Correct 539 ms 9864 KB Output is correct
40 Correct 422 ms 9836 KB Output is correct
41 Correct 202 ms 9836 KB Output is correct
42 Correct 460 ms 9836 KB Output is correct
43 Correct 112 ms 9068 KB Output is correct
44 Correct 112 ms 9196 KB Output is correct
45 Correct 118 ms 9452 KB Output is correct
46 Correct 130 ms 9708 KB Output is correct
47 Correct 493 ms 9708 KB Output is correct
48 Execution timed out 3065 ms 9708 KB Time limit exceeded
49 Halted 0 ms 0 KB -