oj.uz

Submission #585273

# Submission time Handle Problem Language Result Execution time Memory
585273 2022-06-28T13:43:50 Z keta_tsimakuridze Progression (NOI20_progression) C++14
24 / 100
 598 ms 85860 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int,int>
#define f first
#define s second
#define endl "\n"
const int N = 3e5 + 5, mod = 1e9 + 7; //!
int t, d[N], a[N];
struct node {
	int L, R, len;
	pii suf, pref;
	int ans;
} tree[4 * N];
struct z {
	int k, b, t;
} lazy[N];
bool eq(pii a, pii b) {
	return (min(a.s, b.s) == 1 ? 1 : a.f == b.f);
}
node merge(node a, node b) {
	node c;
	c.len = a.len + b.len;
	c.L = a.L; c.R = b.R;
	c.ans = max(a.ans, b.ans);
	c.pref = a.pref; c.suf = b.suf;
	int d = b.L - a.R;
	if(eq(a.suf, {d, 2})) {
		c.ans = max(c.ans, a.suf.s + (!eq({d, 2}, b.pref) ? 1 : b.pref.s));
	}
	if(eq(b.pref, {d, 2})) {
		c.ans = max(c.ans, b.pref.s + (!eq({d, 2}, a.suf) ? 1 : a.suf.s));
	}
	if(c.suf.s == 1) c.suf.f = d;
	if(c.pref.s == 1) c.pref.f = d;
	if(a.pref.s == a.len && eq(a.pref, {d, 2})) {
		c.pref.s += (eq({d, 2}, b.pref) ? b.pref.s : 1);
	}
	if(b.suf.s == b.len && eq(b.suf, {d, 2})) {
		c.suf.s += (eq({d, 2}, a.suf) ? a.suf.s : 1);
	}
	return c;
		
}
void build(int u,int l,int r) {
	if(l == r) {
		tree[u].L = tree[u].R = a[l];
		tree[u].ans = 1;
		tree[u].pref = {0, 1};
		tree[u].suf = {0, 1};
		tree[u].len = 1;
		return;
	}
	int mid = (l + r) / 2;
	build(2 * u, l, mid); build(2 * u + 1, mid + 1, r);
	tree[u] = merge(tree[2 * u], tree[2 * u + 1]);
//	cout << l << " " << r << " " << tree[u].ans << " " << tree[u].R << " " << tree[u].suf.f << " " << tree[u].suf.s <<endl;
 
}
void push(int u,int l,int r) {
	if(lazy[u].t) {
		tree[u].ans = r - l + 1;
		tree[u].L = lazy[u].k * l + lazy[u].b;
		tree[u].R = lazy[u].k * r + lazy[u].b;
		
		tree[u].pref.s = tree[u].suf.s = r - l + 1;
		tree[u].pref.f = tree[u].suf.f = (r == l ? 0 : lazy[u].k);
		tree[u].ans = r - l + 1;
		if(l != r) {
			lazy[2 * u].t = lazy[2 * u + 1].t = 1;
			lazy[2 * u].k = lazy[2 * u + 1].k = lazy[u].k;
			lazy[2 * u].b = lazy[2 * u + 1].b = lazy[u].b;
		}
	} else {
		tree[u].L += lazy[u].k * l + lazy[u].b;
		tree[u].R += lazy[u].k * r + lazy[u].b;
		if(tree[u].len > 1) {
			tree[u].pref.f += lazy[u].k;
			tree[u].suf.f += lazy[u].k;
		}
		if(l != r) {
			lazy[2 * u].k += lazy[u].k;
			lazy[2 * u + 1].k += lazy[u].k;
			lazy[2 * u].b += lazy[u].b;
			lazy[2 * u + 1].b += lazy[u].b;
		}		
	}
	lazy[u].k = lazy[u].b = lazy[u].t = 0;
}
void upd(int u,int st,int en,int l,int r,int k,int b,int t) {
	push(u, l, r);
	if(l > en || r < st) return;
	if(st <= l && r <= en) {			
		lazy[u].k = k;
		lazy[u].b = b;
		lazy[u].t = (t == 2);
		push(u, l, r);
		return;
	}
	int mid = (l + r) / 2;
	upd(2 * u, st, en, l, mid, k, b, t);
	upd(2 * u + 1, st, en, mid + 1, r, k, b, t);
	tree[u] = merge(tree[2 * u], tree[2 * u + 1]);
}
node get(int u,int st,int en, int l,int r) {
	push(u, l, r);
	if(st <= l && r <= en) return tree[u];
	int mid = (l + r) / 2;
	if(mid + 1 > en) return get(2 * u, st, en, l, mid);
	if(mid < st) return get(2 * u + 1, st, en, mid + 1, r);
	return merge(get(2 * u, st, en, l, mid), get(2 * u + 1, st, en, mid + 1, r));
}
 
main() {
	ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
	int n, q;
	cin >> n >> q;
	for(int i = 1; i <= n; i++) {
		cin >> a[i];
	}
	build(1, 1, n);
	for(int i = 1; i <= q; i++) {
		int t;
		cin >> t;
		if(t < 3) { 
			int l, r, s, c;
			cin >> l >> r >> s >> c; 
 
				upd(1, l, r, 1, n, c, s - l * c, t);
			
 
			continue; 
		}
		int l, r;
		cin >> l >> r;
	//	for(int j = 1; j <= n; j++) a[j] = get(1, j, 1, n);
		cout << get(1, l, r, 1, n).ans << endl;
	}
}

Compilation message

Progression.cpp:114:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  114 | main() {
      | ^~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 189 ms 78448 KB Output is correct
2 Correct 102 ms 75720 KB Output is correct
3 Correct 99 ms 75724 KB Output is correct
4 Correct 99 ms 75660 KB Output is correct
5 Correct 125 ms 75808 KB Output is correct
6 Correct 103 ms 75836 KB Output is correct
7 Correct 99 ms 75700 KB Output is correct
8 Correct 27 ms 75476 KB Output is correct
9 Correct 28 ms 75448 KB Output is correct
10 Correct 29 ms 75444 KB Output is correct
11 Correct 163 ms 78400 KB Output is correct
12 Correct 152 ms 78268 KB Output is correct
13 Correct 153 ms 78772 KB Output is correct
14 Correct 156 ms 78708 KB Output is correct
15 Correct 156 ms 78680 KB Output is correct
16 Correct 156 ms 78380 KB Output is correct
17 Correct 153 ms 78280 KB Output is correct
18 Correct 158 ms 78280 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 75540 KB Output is correct
2 Correct 29 ms 75348 KB Output is correct
3 Correct 30 ms 75516 KB Output is correct
4 Correct 29 ms 75448 KB Output is correct
5 Correct 30 ms 75336 KB Output is correct
6 Correct 29 ms 75396 KB Output is correct
7 Correct 29 ms 75460 KB Output is correct
8 Correct 29 ms 75484 KB Output is correct
9 Correct 30 ms 75468 KB Output is correct
10 Correct 29 ms 75520 KB Output is correct
11 Correct 29 ms 75476 KB Output is correct
12 Correct 30 ms 75520 KB Output is correct
13 Correct 29 ms 75476 KB Output is correct
14 Correct 34 ms 75436 KB Output is correct
15 Correct 30 ms 75476 KB Output is correct
16 Correct 35 ms 75448 KB Output is correct
17 Correct 34 ms 75476 KB Output is correct
18 Correct 29 ms 75456 KB Output is correct
19 Correct 32 ms 75412 KB Output is correct
20 Correct 29 ms 75476 KB Output is correct
21 Correct 28 ms 75464 KB Output is correct

Subtask #3
0 / 35.0

# Verdict Execution time Memory Grader output
1 Incorrect 315 ms 85860 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 598 ms 85104 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 315 ms 85860 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 189 ms 78448 KB Output is correct
2 Correct 102 ms 75720 KB Output is correct
3 Correct 99 ms 75724 KB Output is correct
4 Correct 99 ms 75660 KB Output is correct
5 Correct 125 ms 75808 KB Output is correct
6 Correct 103 ms 75836 KB Output is correct
7 Correct 99 ms 75700 KB Output is correct
8 Correct 27 ms 75476 KB Output is correct
9 Correct 28 ms 75448 KB Output is correct
10 Correct 29 ms 75444 KB Output is correct
11 Correct 163 ms 78400 KB Output is correct
12 Correct 152 ms 78268 KB Output is correct
13 Correct 153 ms 78772 KB Output is correct
14 Correct 156 ms 78708 KB Output is correct
15 Correct 156 ms 78680 KB Output is correct
16 Correct 156 ms 78380 KB Output is correct
17 Correct 153 ms 78280 KB Output is correct
18 Correct 158 ms 78280 KB Output is correct
19 Correct 30 ms 75540 KB Output is correct
20 Correct 29 ms 75348 KB Output is correct
21 Correct 30 ms 75516 KB Output is correct
22 Correct 29 ms 75448 KB Output is correct
23 Correct 30 ms 75336 KB Output is correct
24 Correct 29 ms 75396 KB Output is correct
25 Correct 29 ms 75460 KB Output is correct
26 Correct 29 ms 75484 KB Output is correct
27 Correct 30 ms 75468 KB Output is correct
28 Correct 29 ms 75520 KB Output is correct
29 Correct 29 ms 75476 KB Output is correct
30 Correct 30 ms 75520 KB Output is correct
31 Correct 29 ms 75476 KB Output is correct
32 Correct 34 ms 75436 KB Output is correct
33 Correct 30 ms 75476 KB Output is correct
34 Correct 35 ms 75448 KB Output is correct
35 Correct 34 ms 75476 KB Output is correct
36 Correct 29 ms 75456 KB Output is correct
37 Correct 32 ms 75412 KB Output is correct
38 Correct 29 ms 75476 KB Output is correct
39 Correct 28 ms 75464 KB Output is correct
40 Incorrect 315 ms 85860 KB Output isn't correct
41 Halted 0 ms 0 KB -