oj.uz

Submission #872365

# Submission time Handle Problem Language Result Execution time Memory
872365 2023-11-13T02:16:58 Z qthang2k11 Bitaro, who Leaps through Time (JOI19_timeleap) C++17
100 / 100
 554 ms 73564 KB 
// [+]
#include <bits/stdc++.h>
using namespace std;

using ll = long long;

const ll INF = 1e18;

const int N = 3e5 + 5;

int n, q;

struct Node {
	int a, b; 
	bool t;
	ll val;
	Node() { val = -1; }
	Node(int l, int r): 
		a(l), b(r), t(true), val(0) {}
	Node(int a, int b, bool t, ll val):
		a(a), b(b), t(t), val(val) {/*fprintf(stderr,"to (%d, %d, %d, %lld)\n",a,b,t,val);*/}
};

Node merge(const Node &x, const Node &y) {
	// fprintf(stderr, "from (%d, %d, %d, %lld) and (%d, %d, %d, %lld)\n", x.a,x.b,x.t,x.val,y.a,y.b,y.t,y.val);
	if (x.t) {
		if (y.t) {
			// (1, 1)
			if (x.b < y.a) {
				return Node(x.b, y.a, 0, 0);
			} else if (y.b < x.a) {
				return Node(x.a, y.b, 0, x.a - y.b);
			} else {
				return Node(max(x.a, y.a), min(x.b, y.b), 1, 0);
			}
		} else { 
			return Node(max(x.a, min(x.b, y.a)), y.b, 0, y.val + max(0, x.a - y.a)); // (1, 0)
		}
	} else {
		if (y.t) {
			return Node(x.a, max(y.a, min(x.b, y.b)), 0, x.val + max(0, x.b - y.b)); // (0, 1)
		} else {
			return Node(x.a, y.b, 0, x.val + y.val + max(0, x.b - y.a)); // (0, 0)
		}
	}
}

struct SegmentTree {
	Node IT[N << 2];
	SegmentTree() {}
	
	void update(int x, int L, int R, int id, int l, int r) {
		if (l == r) return IT[id] = Node(L, R), void();
		int mid = (l + r) / 2;
		if (x <= mid) update(x, L, R, id << 1, l, mid);
		else update(x, L, R, id << 1 | 1, mid + 1, r);
		// cerr << l << ' ' << mid << " | " << mid + 1 << ' ' << r << '\n';
		IT[id] = merge(IT[id << 1], IT[id << 1 | 1]);
	}
	
	inline void update(int x, int l, int r) {
		update(x, l - x, r - x - 1, 1, 1, n - 1);
	}
	
	Node get(int x, int y, int id, int l, int r) {
		if (l > y || r < x) return Node();
		if (x <= l && r <= y) {
			// auto S = IT[id];
			// cerr << "at range(" << l << ", " << r << ") = ";
			// cerr << S.a << ' ' << S.b << ' ' << S.t << ' ' << S.val << '\n';
			return IT[id];
		}
		int mid = (l + r) / 2;
		auto L = get(x, y, id << 1, l, mid);
		auto R = get(x, y, id << 1 | 1, mid + 1, r);
		// cerr << l << ' ' << mid << " | " << mid + 1 << ' ' << r << '\n';
		if (L.val < 0) return R;
		if (R.val < 0) return L;
		return merge(L, R);
	}
	
	inline Node get(int x, int y) {
		
		// auto S = get(x, y, 1, 1, n - 1);
		// fprintf(stderr, "get(%d, %d) = {%d, %d, %d, %lld}\n", x, y, S.a, S.b, S.t, S.val);
		
		return get(x, y, 1, 1, n - 1);
	}
} seg, revseg;

int32_t main() {
	cin.tie(0)->sync_with_stdio(0);
	
	// merge(Node(2, 4, 1, 0), Node(-1, 1, 1, 0));
	// cerr << "wtf\n\n";
	
	cin >> n >> q;
	for (int i = 1; i < n; i++) {
		int l, r; cin >> l >> r;
		seg.update(i, l, r);
		revseg.update(n - i, l, r);
		// cerr << string(10, '>') <<  "at i = " << n - i << ' ' << l - (n - i) << ' ' << r - (n - i) << '\n';
		// cerr << '\n';
	}
	
	// cerr << '\n';
	
	while (q--) {
		int T; cin >> T;
		if (T == 1) {
			int pos, l, r; 
			cin >> pos >> l >> r;
			seg.update(pos, l, r);
			revseg.update(n - pos, l, r);
		} else {
			int A, t_A, B, t_B;
			cin >> A >> t_A >> B >> t_B;
			if (A == B) cout << max(0, t_A - t_B);
			else {
				if (A < B) {
					cout << merge(Node(t_A - A, t_A - A), merge(seg.get(A, B - 1), Node((int)-1e9, t_B - B))).val;
				} else {
					cout << merge(Node(t_A - (n - A + 1), t_A - (n - A + 1)), merge(revseg.get(n - A + 1, n - B), Node((int)-1e9, t_B - (n - B + 1)))).val;
				}
				
				// cerr << n - A + 1 << ' ' << n - B << '\n';
				
				// cerr << S.a << ' ' << S.b << ' ' << S.t << ' ' << S.val << '\n';
				
				
			}
			cout << '\n';
		}
	}
	
	return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 56664 KB Output is correct
2 Correct 7 ms 56668 KB Output is correct
3 Correct 7 ms 56776 KB Output is correct
4 Correct 7 ms 56668 KB Output is correct
5 Correct 7 ms 56828 KB Output is correct
6 Correct 7 ms 56668 KB Output is correct
7 Correct 8 ms 56604 KB Output is correct
8 Correct 8 ms 56668 KB Output is correct
9 Correct 7 ms 56668 KB Output is correct
10 Correct 7 ms 56668 KB Output is correct
11 Correct 8 ms 56868 KB Output is correct
12 Correct 8 ms 56668 KB Output is correct
13 Correct 8 ms 56832 KB Output is correct
14 Correct 8 ms 56668 KB Output is correct
15 Correct 8 ms 56668 KB Output is correct
16 Correct 8 ms 56664 KB Output is correct
17 Correct 9 ms 56668 KB Output is correct
18 Correct 8 ms 56668 KB Output is correct
19 Correct 8 ms 56668 KB Output is correct
20 Correct 8 ms 56868 KB Output is correct
21 Correct 9 ms 56668 KB Output is correct
22 Correct 8 ms 56668 KB Output is correct
23 Correct 8 ms 56668 KB Output is correct
24 Correct 8 ms 56668 KB Output is correct
25 Correct 8 ms 56872 KB Output is correct
26 Correct 8 ms 56768 KB Output is correct
27 Correct 8 ms 56664 KB Output is correct
28 Correct 8 ms 56668 KB Output is correct
29 Correct 8 ms 56800 KB Output is correct
30 Correct 8 ms 56664 KB Output is correct
31 Correct 8 ms 56664 KB Output is correct
32 Correct 8 ms 56668 KB Output is correct
33 Correct 8 ms 56772 KB Output is correct
34 Correct 9 ms 56668 KB Output is correct
35 Correct 10 ms 56668 KB Output is correct
36 Correct 8 ms 56664 KB Output is correct
37 Correct 8 ms 56668 KB Output is correct
38 Correct 8 ms 56668 KB Output is correct
39 Correct 8 ms 56748 KB Output is correct
40 Correct 8 ms 56668 KB Output is correct
41 Correct 7 ms 56740 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 499 ms 73344 KB Output is correct
2 Correct 502 ms 73040 KB Output is correct
3 Correct 496 ms 72952 KB Output is correct
4 Correct 466 ms 72896 KB Output is correct
5 Correct 554 ms 73436 KB Output is correct
6 Correct 512 ms 73128 KB Output is correct
7 Correct 484 ms 73412 KB Output is correct
8 Correct 498 ms 73540 KB Output is correct
9 Correct 467 ms 73092 KB Output is correct
10 Correct 493 ms 73536 KB Output is correct
11 Correct 480 ms 73088 KB Output is correct
12 Correct 507 ms 73520 KB Output is correct
13 Correct 508 ms 73564 KB Output is correct
14 Correct 7 ms 56668 KB Output is correct

Subtask #3
66.0 / 66.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 56664 KB Output is correct
2 Correct 7 ms 56668 KB Output is correct
3 Correct 7 ms 56776 KB Output is correct
4 Correct 7 ms 56668 KB Output is correct
5 Correct 7 ms 56828 KB Output is correct
6 Correct 7 ms 56668 KB Output is correct
7 Correct 8 ms 56604 KB Output is correct
8 Correct 8 ms 56668 KB Output is correct
9 Correct 7 ms 56668 KB Output is correct
10 Correct 7 ms 56668 KB Output is correct
11 Correct 8 ms 56868 KB Output is correct
12 Correct 8 ms 56668 KB Output is correct
13 Correct 8 ms 56832 KB Output is correct
14 Correct 8 ms 56668 KB Output is correct
15 Correct 8 ms 56668 KB Output is correct
16 Correct 8 ms 56664 KB Output is correct
17 Correct 9 ms 56668 KB Output is correct
18 Correct 8 ms 56668 KB Output is correct
19 Correct 8 ms 56668 KB Output is correct
20 Correct 8 ms 56868 KB Output is correct
21 Correct 9 ms 56668 KB Output is correct
22 Correct 8 ms 56668 KB Output is correct
23 Correct 8 ms 56668 KB Output is correct
24 Correct 8 ms 56668 KB Output is correct
25 Correct 8 ms 56872 KB Output is correct
26 Correct 8 ms 56768 KB Output is correct
27 Correct 8 ms 56664 KB Output is correct
28 Correct 8 ms 56668 KB Output is correct
29 Correct 8 ms 56800 KB Output is correct
30 Correct 8 ms 56664 KB Output is correct
31 Correct 8 ms 56664 KB Output is correct
32 Correct 8 ms 56668 KB Output is correct
33 Correct 8 ms 56772 KB Output is correct
34 Correct 9 ms 56668 KB Output is correct
35 Correct 10 ms 56668 KB Output is correct
36 Correct 8 ms 56664 KB Output is correct
37 Correct 8 ms 56668 KB Output is correct
38 Correct 8 ms 56668 KB Output is correct
39 Correct 8 ms 56748 KB Output is correct
40 Correct 8 ms 56668 KB Output is correct
41 Correct 7 ms 56740 KB Output is correct
42 Correct 499 ms 73344 KB Output is correct
43 Correct 502 ms 73040 KB Output is correct
44 Correct 496 ms 72952 KB Output is correct
45 Correct 466 ms 72896 KB Output is correct
46 Correct 554 ms 73436 KB Output is correct
47 Correct 512 ms 73128 KB Output is correct
48 Correct 484 ms 73412 KB Output is correct
49 Correct 498 ms 73540 KB Output is correct
50 Correct 467 ms 73092 KB Output is correct
51 Correct 493 ms 73536 KB Output is correct
52 Correct 480 ms 73088 KB Output is correct
53 Correct 507 ms 73520 KB Output is correct
54 Correct 508 ms 73564 KB Output is correct
55 Correct 7 ms 56668 KB Output is correct
56 Correct 500 ms 70132 KB Output is correct
57 Correct 476 ms 69908 KB Output is correct
58 Correct 504 ms 70352 KB Output is correct
59 Correct 510 ms 70440 KB Output is correct
60 Correct 470 ms 69712 KB Output is correct
61 Correct 502 ms 70224 KB Output is correct
62 Correct 513 ms 70224 KB Output is correct
63 Correct 507 ms 70336 KB Output is correct
64 Correct 509 ms 70664 KB Output is correct
65 Correct 495 ms 69964 KB Output is correct
66 Correct 497 ms 70048 KB Output is correct
67 Correct 506 ms 70676 KB Output is correct
68 Correct 479 ms 69748 KB Output is correct
69 Correct 507 ms 70484 KB Output is correct
70 Correct 472 ms 69892 KB Output is correct
71 Correct 500 ms 69308 KB Output is correct
72 Correct 504 ms 69640 KB Output is correct
73 Correct 524 ms 69976 KB Output is correct
74 Correct 503 ms 70048 KB Output is correct
75 Correct 518 ms 69932 KB Output is correct
76 Correct 514 ms 70448 KB Output is correct
77 Correct 7 ms 56756 KB Output is correct