oj.uz

Submission #250272

# Submission time Handle Problem Language Result Execution time Memory
250272 2020-07-17T10:26:20 Z mode149256 Fortune Telling 2 (JOI14_fortune_telling2) C++14
35 / 100
 678 ms 262148 KB 
/*input
5 1
9 1
8 8
3 7
4 6
4 2
3
*/
#include <bits/stdc++.h>
using namespace std;

namespace my_template {
typedef long long ll;
typedef long double ld;
typedef complex<ld> cd;

typedef pair<int, int> pi;
typedef pair<ll, ll> pl;
typedef pair<ld, ld> pd;

typedef vector<int> vi;
typedef vector<vi> vii;
typedef vector<ld> vd;
typedef vector<ll> vl;
typedef vector<vl> vll;
typedef vector<pi> vpi;
typedef vector<vpi> vpii;
typedef vector<pl> vpl;
typedef vector<cd> vcd;
typedef vector<pd> vpd;
typedef vector<bool> vb;
typedef vector<vb> vbb;
typedef std::string str;
typedef std::vector<str> vs;

#define x first
#define y second
#define debug(...) cout<<"["<<#__VA_ARGS__<<": "<<__VA_ARGS__<<"]\n"

const ld PI = 3.14159265358979323846264338327950288419716939937510582097494L;

template<typename T>
pair<T, T> operator+(const pair<T, T> &a, const pair<T, T> &b) { return pair<T, T>(a.x + b.x, a.y + b.y); }
template<typename T>
pair<T, T> operator-(const pair<T, T> &a, const pair<T, T> &b) { return pair<T, T>(a.x - b.x, a.y - b.y); }
template<typename T>
T operator*(const pair<T, T> &a, const pair<T, T> &b) { return (a.x * b.x + a.y * b.y); }
template<typename T>
T operator^(const pair<T, T> &a, const pair<T, T> &b) { return (a.x * b.y - a.y * b.x); }

template<typename T>
void print(vector<T> vec, string name = "") {
	cout << name;
	for (auto u : vec)
		cout << u << ' ';
	cout << '\n';
}
}
using namespace my_template;

const int MOD = 1000000007;
const ll INF = std::numeric_limits<ll>::max();
const int MX = 100101;

struct FENWICK {
	vi sk;
	int N;
	FENWICK(int n) : N(n) {
		sk.resize(N + 1, 0);
	}

	void add(int i, int val) {
		for (; i <= N; i += (i) & (-i))
			sk[i] += val;
	}

	int get(int i) {
		int ret = 0;
		for (; i > 0; i -= (i) & (-i))
			ret += sk[i];
		return ret;
	}
};

struct node {
	int l, r;
	int did;
	node *left = nullptr;
	node *right = nullptr;
	node(int a, int b): l(a), r(b), did(-1) { }
	inline void add_left() { if (!left) left = new node(l, (l + r) / 2); }
	inline void add_right() { if (!right) right = new node((l + r) / 2 + 1, r); }

	void add(int pos, int val) {
		if (l == r) {
			did = max(did, val);
			return;
		}

		if (pos <= (l + r) / 2) {
			add_left(); left->add(pos, val);
		} else {
			add_right(); right->add(pos, val);
		}

		did = max((left ? left->did : -1), (right ? right->did : -1));
	}

	int get(int a, int b) {
		if (r < a or b < l) return -1;
		else if (a <= l and r <= b) return did;
		else {
			add_left();
			add_right();
			return max(left->get(a, b), right->get(a, b));
		}
	}
};

int main() {
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	int N, K;
	cin >> N >> K;
	vpi sk(N);
	for (int i = 0; i < N; ++i)
	{
		cin >> sk[i].x >> sk[i].y;
	}

	node inds(0, MOD);
	vi qr(K);
	vpi suInd(K);
	for (int i = 0; i < K; ++i) {
		cin >> qr[i];
		inds.add(qr[i], i);
		suInd[i] = {qr[i], i};
	}

	sort(suInd.rbegin(), suInd.rend());
	sort(sk.begin(), sk.end(), [](const pi & a, const pi & b) {
		return max(a.x, a.y) > max(b.x, b.y);
	});

	FENWICK fen(K);

	ll ats = 0;
	int j = 0;
	for (int i = 0; i < N; ++i)
	{
		int a = max(sk[i].x, sk[i].y);
		int b = min(sk[i].x, sk[i].y);
		int k = inds.get(b, a - 1);

		while (j < (int)suInd.size() and suInd[j].x >= a) {
			fen.add(suInd[j].y + 1, 1);
			j++;
		}

		int kiek;
		if (k == -1) {
			kiek = fen.get(K);
			if (kiek & 1) ats += (ll)sk[i].y;
			else ats += (ll)sk[i].x;
		} else {
			kiek = fen.get(K) - fen.get(k + 1);
			if (kiek & 1) ats += (ll)b;
			else ats += (ll)a;
		}
		// printf("i = %d, a = %d, b = %d, k = %d, kiek = %d\n", i, a, b, k, kiek);
	}

	printf("%lld\n", ats);
}

/* Look for:
* special cases (n=1?)
* overflow (ll vs int?)
* the exact constraints (multiple sets are too slow for n=10^6 :( )
* array bounds
*/

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1664 KB Output is correct
2 Correct 5 ms 3072 KB Output is correct
3 Correct 7 ms 4608 KB Output is correct
4 Correct 7 ms 4608 KB Output is correct
5 Correct 11 ms 4608 KB Output is correct
6 Correct 7 ms 4608 KB Output is correct
7 Correct 6 ms 4608 KB Output is correct
8 Correct 10 ms 4352 KB Output is correct
9 Correct 5 ms 1536 KB Output is correct
10 Correct 1 ms 512 KB Output is correct
11 Correct 5 ms 2944 KB Output is correct
12 Correct 5 ms 2944 KB Output is correct
13 Correct 7 ms 3200 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1664 KB Output is correct
2 Correct 5 ms 3072 KB Output is correct
3 Correct 7 ms 4608 KB Output is correct
4 Correct 7 ms 4608 KB Output is correct
5 Correct 11 ms 4608 KB Output is correct
6 Correct 7 ms 4608 KB Output is correct
7 Correct 6 ms 4608 KB Output is correct
8 Correct 10 ms 4352 KB Output is correct
9 Correct 5 ms 1536 KB Output is correct
10 Correct 1 ms 512 KB Output is correct
11 Correct 5 ms 2944 KB Output is correct
12 Correct 5 ms 2944 KB Output is correct
13 Correct 7 ms 3200 KB Output is correct
14 Correct 64 ms 35212 KB Output is correct
15 Correct 119 ms 65400 KB Output is correct
16 Correct 174 ms 93816 KB Output is correct
17 Correct 226 ms 121208 KB Output is correct
18 Correct 254 ms 121336 KB Output is correct
19 Correct 249 ms 120824 KB Output is correct
20 Correct 225 ms 121076 KB Output is correct
21 Correct 221 ms 112120 KB Output is correct
22 Correct 54 ms 9464 KB Output is correct
23 Correct 58 ms 7672 KB Output is correct
24 Correct 50 ms 6264 KB Output is correct
25 Correct 56 ms 11384 KB Output is correct
26 Correct 127 ms 68864 KB Output is correct
27 Correct 142 ms 76536 KB Output is correct
28 Correct 149 ms 73400 KB Output is correct
29 Correct 173 ms 99064 KB Output is correct

Subtask #3
0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1664 KB Output is correct
2 Correct 5 ms 3072 KB Output is correct
3 Correct 7 ms 4608 KB Output is correct
4 Correct 7 ms 4608 KB Output is correct
5 Correct 11 ms 4608 KB Output is correct
6 Correct 7 ms 4608 KB Output is correct
7 Correct 6 ms 4608 KB Output is correct
8 Correct 10 ms 4352 KB Output is correct
9 Correct 5 ms 1536 KB Output is correct
10 Correct 1 ms 512 KB Output is correct
11 Correct 5 ms 2944 KB Output is correct
12 Correct 5 ms 2944 KB Output is correct
13 Correct 7 ms 3200 KB Output is correct
14 Correct 64 ms 35212 KB Output is correct
15 Correct 119 ms 65400 KB Output is correct
16 Correct 174 ms 93816 KB Output is correct
17 Correct 226 ms 121208 KB Output is correct
18 Correct 254 ms 121336 KB Output is correct
19 Correct 249 ms 120824 KB Output is correct
20 Correct 225 ms 121076 KB Output is correct
21 Correct 221 ms 112120 KB Output is correct
22 Correct 54 ms 9464 KB Output is correct
23 Correct 58 ms 7672 KB Output is correct
24 Correct 50 ms 6264 KB Output is correct
25 Correct 56 ms 11384 KB Output is correct
26 Correct 127 ms 68864 KB Output is correct
27 Correct 142 ms 76536 KB Output is correct
28 Correct 149 ms 73400 KB Output is correct
29 Correct 173 ms 99064 KB Output is correct
30 Correct 434 ms 152352 KB Output is correct
31 Correct 600 ms 230944 KB Output is correct
32 Runtime error 678 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
33 Halted 0 ms 0 KB -