oj.uz

Submission #585244

# Submission time Handle Problem Language Result Execution time Memory
585244 2022-06-28T13:10:09 Z keta_tsimakuridze Progression (NOI20_progression) C++17
24 / 100
 1103 ms 85776 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, inf = 1e18; //!
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(int a, int b) {
	return (a == -inf || b == -inf ? 1 : a == b);
}
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);
//	cout << eq(a.suf.f, b.suf.f) << endl;
	if(eq(a.suf.f, b.pref.f) && eq(a.suf.f, b.L - a.R) && eq(b.pref.f, b.L - a.R)) {
		c.ans = max(c.ans, a.suf.s + b.pref.s);
	}
	if(eq(a.suf.f, b.L - a.R)) {
		c.ans = max(c.ans, a.suf.s + 1);
	}
	if(eq(b.pref.f, b.L - a.R)) {
		c.ans = max(c.ans, b.pref.s + 1);
	}
	c.suf = b.suf;
	if(b.suf.s == b.len && eq(a.suf.f, b.pref.f) && eq(a.suf.f, b.L - a.R) && eq(b.suf.f, b.L - a.R)) {
		c.suf.s += a.suf.s;
	} else if(b.suf.s == b.len && eq(b.suf.f, b.L - a.R)) {
		c.suf.s++;
	}
	c.pref = a.pref;
	if(a.pref.s == a.len && eq(a.pref.f, b.pref.f)&& eq(a.pref.f, b.L - a.R) && eq(b.pref.f, b.L - a.R)) {
		c.pref.s += b.pref.s;
	} else if(a.pref.s == a.len && eq(a.pref.f, b.L - a.R)) c.pref.s++;
	
	if(b.len == 1) {
		c.suf.f = b.L - a.R;
	}
	if(a.len == 1) {
		c.pref.f = b.L - a.R;
	}
	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 = {-inf, 1};
		tree[u].suf = {-inf, 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 ? -inf : 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:125:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  125 | main() {
      | ^~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 557 ms 78424 KB Output is correct
2 Correct 373 ms 75776 KB Output is correct
3 Correct 374 ms 75768 KB Output is correct
4 Correct 408 ms 75804 KB Output is correct
5 Correct 380 ms 75772 KB Output is correct
6 Correct 398 ms 75784 KB Output is correct
7 Correct 487 ms 75712 KB Output is correct
8 Correct 33 ms 75464 KB Output is correct
9 Correct 37 ms 75424 KB Output is correct
10 Correct 29 ms 75408 KB Output is correct
11 Correct 709 ms 78332 KB Output is correct
12 Correct 633 ms 78284 KB Output is correct
13 Correct 587 ms 78628 KB Output is correct
14 Correct 587 ms 78668 KB Output is correct
15 Correct 549 ms 78664 KB Output is correct
16 Correct 545 ms 78296 KB Output is correct
17 Correct 557 ms 78328 KB Output is correct
18 Correct 578 ms 78300 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 75392 KB Output is correct
2 Correct 30 ms 75348 KB Output is correct
3 Correct 30 ms 75444 KB Output is correct
4 Correct 30 ms 75408 KB Output is correct
5 Correct 34 ms 75376 KB Output is correct
6 Correct 29 ms 75348 KB Output is correct
7 Correct 34 ms 75404 KB Output is correct
8 Correct 34 ms 75468 KB Output is correct
9 Correct 34 ms 75412 KB Output is correct
10 Correct 28 ms 75520 KB Output is correct
11 Correct 29 ms 75484 KB Output is correct
12 Correct 30 ms 75496 KB Output is correct
13 Correct 29 ms 75476 KB Output is correct
14 Correct 30 ms 75472 KB Output is correct
15 Correct 32 ms 75468 KB Output is correct
16 Correct 30 ms 75468 KB Output is correct
17 Correct 32 ms 75392 KB Output is correct
18 Correct 30 ms 75516 KB Output is correct
19 Correct 29 ms 75352 KB Output is correct
20 Correct 28 ms 75348 KB Output is correct
21 Correct 29 ms 75364 KB Output is correct

Subtask #3
0 / 35.0

# Verdict Execution time Memory Grader output
1 Incorrect 912 ms 85776 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 1103 ms 85120 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 912 ms 85776 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 557 ms 78424 KB Output is correct
2 Correct 373 ms 75776 KB Output is correct
3 Correct 374 ms 75768 KB Output is correct
4 Correct 408 ms 75804 KB Output is correct
5 Correct 380 ms 75772 KB Output is correct
6 Correct 398 ms 75784 KB Output is correct
7 Correct 487 ms 75712 KB Output is correct
8 Correct 33 ms 75464 KB Output is correct
9 Correct 37 ms 75424 KB Output is correct
10 Correct 29 ms 75408 KB Output is correct
11 Correct 709 ms 78332 KB Output is correct
12 Correct 633 ms 78284 KB Output is correct
13 Correct 587 ms 78628 KB Output is correct
14 Correct 587 ms 78668 KB Output is correct
15 Correct 549 ms 78664 KB Output is correct
16 Correct 545 ms 78296 KB Output is correct
17 Correct 557 ms 78328 KB Output is correct
18 Correct 578 ms 78300 KB Output is correct
19 Correct 33 ms 75392 KB Output is correct
20 Correct 30 ms 75348 KB Output is correct
21 Correct 30 ms 75444 KB Output is correct
22 Correct 30 ms 75408 KB Output is correct
23 Correct 34 ms 75376 KB Output is correct
24 Correct 29 ms 75348 KB Output is correct
25 Correct 34 ms 75404 KB Output is correct
26 Correct 34 ms 75468 KB Output is correct
27 Correct 34 ms 75412 KB Output is correct
28 Correct 28 ms 75520 KB Output is correct
29 Correct 29 ms 75484 KB Output is correct
30 Correct 30 ms 75496 KB Output is correct
31 Correct 29 ms 75476 KB Output is correct
32 Correct 30 ms 75472 KB Output is correct
33 Correct 32 ms 75468 KB Output is correct
34 Correct 30 ms 75468 KB Output is correct
35 Correct 32 ms 75392 KB Output is correct
36 Correct 30 ms 75516 KB Output is correct
37 Correct 29 ms 75352 KB Output is correct
38 Correct 28 ms 75348 KB Output is correct
39 Correct 29 ms 75364 KB Output is correct
40 Incorrect 912 ms 85776 KB Output isn't correct
41 Halted 0 ms 0 KB -