oj.uz

Submission #220385

# Submission time Handle Problem Language Result Execution time Memory
220385 2020-04-07T19:15:04 Z YouKnowWho Game (IOI13_game) C++17
100 / 100
 3289 ms 73500 KB 
#include<bits/stdc++.h>
#include "game.h"
using namespace std;
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());

const int N = 3e5 + 9;

struct node {
	node *l, *r;
	int pos, key, mn, mx;
	long long val, g;
	node(int position, long long value) {
		l = r = nullptr;
		mn = mx = pos = position;
		key = rnd();
		val = g = value;
	}
	void pull() {
		g = val;
		if(l) g = __gcd(g, l->g);
		if(r) g = __gcd(g, r->g);
		mn = (l ? l->mn : pos);
		mx = (r ? r->mx : pos);
	}
};
//memory O(n)
struct treap
{
	node *root;
	treap() {
		root = nullptr;
	}
	void split(node *t, int pos, node *&l, node *&r)
	{
		if (t == nullptr) {
			l = r = nullptr;
			return;
		}
		if (t->pos < pos) {
			split(t->r, pos, l, r);
			t->r = l;
			l = t;
		}
		else {
			split(t->l, pos, l, r);
			t->l = r;
			r = t;
		}
		t->pull();
	}
	node* merge(node *l, node *r)
	{
		if (!l || !r) return l ? l : r;
		if (l->key < r->key) {
			l->r = merge(l->r, r);
			l->pull();
			return l;
		}
		r->l = merge(l, r->l);
		r->pull();
		return r;
	}
	bool find(int pos)
	{
		node *t = root;
		while (t) {
			if (t->pos == pos) return true;
			if (t->pos > pos) t = t->l;
			else t = t->r;
		}
		return false;
	}
	void upd(node *t, int pos, long long val)
	{
		if (t->pos == pos) {
			t->val = val;
			t->pull();
			return;
		}
		if (t->pos > pos) upd(t->l, pos, val);
		else upd(t->r, pos, val);
		t->pull();
	}
	void insert(int pos, long long val) //set a_pos = val
	{
		if (find(pos)) upd(root, pos, val);
		else {
			node *l, *r;
			split(root, pos, l, r);
			root = merge(merge(l, new node(pos, val)), r);
		}
	}
	long long query(node *t, int st, int en)
	{
		if (t->mx < st || en < t->mn) return 0;
		if (st <= t->mn && t->mx <= en) return t->g;
		long long ans = (st <= t->pos && t->pos <= en ? t->val : 0);
		if (t->l) ans = __gcd(ans, query(t->l, st, en));
		if (t->r) ans = __gcd(ans, query(t->r, st, en));
		return ans;
	}
	long long query(int l, int r) //gcd of a_i such that l <= i <= r
	{
		if (!root) return 0;
		return query(root, l, r);
	}
	void print(node *t) {
		if (!t) return;
		print(t->l);
		cout << t->val << " ";
		print(t->r);
	}
};
//total memory along with treap = nlogn
struct ST
{
	ST *l, *r;
	treap t;
	int b, e;
	ST()
	{
		l = r = nullptr;
	}
	ST(int st, int en)
	{
		l = r = nullptr;
		b = st, e = en;
	}
	void fix(int pos)
	{
		long long val = 0;
		if (l) val = __gcd(val, l->t.query(pos, pos));
		if (r) val = __gcd(val, r->t.query(pos, pos));
		t.insert(pos, val);
	}
	void upd(int x, int y, long long val) //set a[x][y] = val
	{
		if (e < x || x < b) return;
		if (b == e) {
			t.insert(y, val);
			return;
		}
		if (b != e) {
			if (x <= (b + e) / 2) {
				if (!l) l = new ST(b, (b + e) / 2);
				l->upd(x, y, val);
			}
			else {
				if (!r) r = new ST((b + e) / 2 + 1, e);
				r->upd(x, y, val);
			}
		}
		fix(y);
	}
	long long query(int i, int j, int st, int en) //gcd of a[x][y] such that i <= x <= j && st <= y <= en
	{
		if (e < i || j < b) return 0;
		if (i <= b && e <= j) return t.query(st, en);
		long long ans = 0;
		if (l) ans = __gcd(ans, l->query(i, j, st, en));
		if (r) ans = __gcd(ans, r->query(i, j, st, en));
		return ans;
	}
};

int r, c, q;
ST t;

void init(int R, int C) {
	r = R; c = C;
	t = ST(0, r - 1);
}
void update(int P, int Q, long long K) {
	t.upd(P, Q, K);
}
long long calculate(int P, int Q, int U, int V) {
	return t.query(P, U, Q, V);
}

//int32_t main()
//{
//    int n, m; cin >> n >> m;
//    ST t(1, n);
//    int q; cin >> q;
//    while(q--){
//        int ty; cin >> ty;
//        if(ty == 1){
//            int x, y, v; cin >> x >> y >> v;
//            t.upd(x, y, v);
//        }
//        else{
//            int x1, y1, x2, y2; cin >> x1 >> y1 >> x2 >> y2;
//            cout << t.query(x1, x2, y1, y2) << '\n';
//        }
//    }
//    return 0;
//}

Compilation message

grader.c: In function 'int main()':
grader.c:18:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
  int res;
      ^~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 4 ms 256 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 256 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 512 KB Output is correct
4 Correct 622 ms 11568 KB Output is correct
5 Correct 345 ms 11384 KB Output is correct
6 Correct 623 ms 8696 KB Output is correct
7 Correct 670 ms 8544 KB Output is correct
8 Correct 441 ms 7672 KB Output is correct
9 Correct 666 ms 8824 KB Output is correct
10 Correct 633 ms 8312 KB Output is correct
11 Correct 4 ms 256 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 256 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 512 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 856 ms 13432 KB Output is correct
13 Correct 1287 ms 7928 KB Output is correct
14 Correct 278 ms 5708 KB Output is correct
15 Correct 1402 ms 9092 KB Output is correct
16 Correct 310 ms 11540 KB Output is correct
17 Correct 844 ms 9976 KB Output is correct
18 Correct 1481 ms 12920 KB Output is correct
19 Correct 1282 ms 13168 KB Output is correct
20 Correct 1188 ms 12536 KB Output is correct
21 Correct 5 ms 256 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 619 ms 11676 KB Output is correct
13 Correct 305 ms 11384 KB Output is correct
14 Correct 627 ms 8696 KB Output is correct
15 Correct 672 ms 8568 KB Output is correct
16 Correct 439 ms 7672 KB Output is correct
17 Correct 686 ms 8696 KB Output is correct
18 Correct 628 ms 8440 KB Output is correct
19 Correct 844 ms 13432 KB Output is correct
20 Correct 1331 ms 7800 KB Output is correct
21 Correct 295 ms 5724 KB Output is correct
22 Correct 1380 ms 9228 KB Output is correct
23 Correct 305 ms 11512 KB Output is correct
24 Correct 850 ms 9976 KB Output is correct
25 Correct 1482 ms 13052 KB Output is correct
26 Correct 1258 ms 13392 KB Output is correct
27 Correct 1194 ms 12536 KB Output is correct
28 Correct 562 ms 39288 KB Output is correct
29 Correct 1482 ms 41944 KB Output is correct
30 Correct 1698 ms 30232 KB Output is correct
31 Correct 1511 ms 24688 KB Output is correct
32 Correct 396 ms 10360 KB Output is correct
33 Correct 560 ms 10556 KB Output is correct
34 Correct 421 ms 35704 KB Output is correct
35 Correct 1140 ms 25336 KB Output is correct
36 Correct 2306 ms 40056 KB Output is correct
37 Correct 1863 ms 39968 KB Output is correct
38 Correct 1833 ms 39416 KB Output is correct
39 Correct 1497 ms 33088 KB Output is correct
40 Correct 5 ms 384 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 6 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 4 ms 256 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 646 ms 11616 KB Output is correct
13 Correct 358 ms 11288 KB Output is correct
14 Correct 631 ms 8824 KB Output is correct
15 Correct 671 ms 8440 KB Output is correct
16 Correct 442 ms 7536 KB Output is correct
17 Correct 699 ms 8696 KB Output is correct
18 Correct 636 ms 8444 KB Output is correct
19 Correct 873 ms 13560 KB Output is correct
20 Correct 1277 ms 8056 KB Output is correct
21 Correct 298 ms 5880 KB Output is correct
22 Correct 1350 ms 9172 KB Output is correct
23 Correct 317 ms 11616 KB Output is correct
24 Correct 871 ms 9848 KB Output is correct
25 Correct 1496 ms 13048 KB Output is correct
26 Correct 1265 ms 13048 KB Output is correct
27 Correct 1198 ms 12536 KB Output is correct
28 Correct 569 ms 39372 KB Output is correct
29 Correct 1613 ms 41884 KB Output is correct
30 Correct 1710 ms 30044 KB Output is correct
31 Correct 1528 ms 24756 KB Output is correct
32 Correct 398 ms 10368 KB Output is correct
33 Correct 548 ms 10616 KB Output is correct
34 Correct 413 ms 35576 KB Output is correct
35 Correct 1169 ms 25464 KB Output is correct
36 Correct 2332 ms 39756 KB Output is correct
37 Correct 1835 ms 40008 KB Output is correct
38 Correct 1842 ms 39584 KB Output is correct
39 Correct 773 ms 71336 KB Output is correct
40 Correct 2674 ms 73500 KB Output is correct
41 Correct 2782 ms 55928 KB Output is correct
42 Correct 2401 ms 43748 KB Output is correct
43 Correct 892 ms 68052 KB Output is correct
44 Correct 517 ms 10748 KB Output is correct
45 Correct 1575 ms 33276 KB Output is correct
46 Correct 3289 ms 72444 KB Output is correct
47 Correct 3252 ms 72396 KB Output is correct
48 Correct 3223 ms 71860 KB Output is correct
49 Correct 4 ms 256 KB Output is correct