oj.uz

Submission #585261

# Submission time Handle Problem Language Result Execution time Memory
585261 2022-06-28T13:20:43 Z keta_tsimakuridze Progression (NOI20_progression) C++14
24 / 100
 541 ms 85920 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);
	if(eq(a.suf, b.pref) && eq(a.suf, {b.L - a.R, 2}) && eq(b.pref, {b.L - a.R, 2})) {
		c.ans = max(c.ans, a.suf.s + b.pref.s);
	}
	if(eq(a.suf, {b.L - a.R, 2})) {
		c.ans = max(c.ans, a.suf.s + 1);
	}
	if(eq(b.pref, {b.L - a.R, 2})) {
		c.ans = max(c.ans, b.pref.s + 1);
	}
	c.suf = b.suf;
	if(b.suf.s == b.len && eq(a.suf, b.pref) && eq(a.suf, {b.L - a.R, 2}) && eq(b.suf, {b.L - a.R, 2})) {
		c.suf.s += a.suf.s;
	} else if(b.suf.s == b.len && eq(b.suf, {b.L - a.R, 3})) {
		c.suf.s++;
	}
	c.pref = a.pref;
	if(a.pref.s == a.len && eq(a.pref, b.pref)&& eq(a.pref, {b.L - a.R, 2}) && eq(b.pref, {b.L - a.R, 2})) {
		c.pref.s += b.pref.s;
	} else if(a.pref.s == a.len && eq(a.pref, {b.L - a.R, 2})) 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 = {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:124:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  124 | main() {
      | ^~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 150 ms 78412 KB Output is correct
2 Correct 99 ms 75688 KB Output is correct
3 Correct 101 ms 75716 KB Output is correct
4 Correct 102 ms 75696 KB Output is correct
5 Correct 103 ms 75832 KB Output is correct
6 Correct 101 ms 75852 KB Output is correct
7 Correct 104 ms 75740 KB Output is correct
8 Correct 28 ms 75376 KB Output is correct
9 Correct 32 ms 75392 KB Output is correct
10 Correct 28 ms 75392 KB Output is correct
11 Correct 147 ms 78424 KB Output is correct
12 Correct 151 ms 78284 KB Output is correct
13 Correct 147 ms 78672 KB Output is correct
14 Correct 149 ms 78576 KB Output is correct
15 Correct 153 ms 78812 KB Output is correct
16 Correct 152 ms 78304 KB Output is correct
17 Correct 149 ms 78328 KB Output is correct
18 Correct 150 ms 78324 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 75460 KB Output is correct
2 Correct 28 ms 75396 KB Output is correct
3 Correct 32 ms 75340 KB Output is correct
4 Correct 27 ms 75476 KB Output is correct
5 Correct 27 ms 75428 KB Output is correct
6 Correct 30 ms 75368 KB Output is correct
7 Correct 28 ms 75372 KB Output is correct
8 Correct 29 ms 75492 KB Output is correct
9 Correct 27 ms 75532 KB Output is correct
10 Correct 28 ms 75476 KB Output is correct
11 Correct 30 ms 75480 KB Output is correct
12 Correct 30 ms 75476 KB Output is correct
13 Correct 29 ms 75492 KB Output is correct
14 Correct 28 ms 75432 KB Output is correct
15 Correct 29 ms 75476 KB Output is correct
16 Correct 29 ms 75420 KB Output is correct
17 Correct 29 ms 75488 KB Output is correct
18 Correct 29 ms 75488 KB Output is correct
19 Correct 29 ms 75440 KB Output is correct
20 Correct 29 ms 75340 KB Output is correct
21 Correct 28 ms 75436 KB Output is correct

Subtask #3
0 / 35.0

# Verdict Execution time Memory Grader output
1 Incorrect 321 ms 85920 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 541 ms 85008 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 321 ms 85920 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 150 ms 78412 KB Output is correct
2 Correct 99 ms 75688 KB Output is correct
3 Correct 101 ms 75716 KB Output is correct
4 Correct 102 ms 75696 KB Output is correct
5 Correct 103 ms 75832 KB Output is correct
6 Correct 101 ms 75852 KB Output is correct
7 Correct 104 ms 75740 KB Output is correct
8 Correct 28 ms 75376 KB Output is correct
9 Correct 32 ms 75392 KB Output is correct
10 Correct 28 ms 75392 KB Output is correct
11 Correct 147 ms 78424 KB Output is correct
12 Correct 151 ms 78284 KB Output is correct
13 Correct 147 ms 78672 KB Output is correct
14 Correct 149 ms 78576 KB Output is correct
15 Correct 153 ms 78812 KB Output is correct
16 Correct 152 ms 78304 KB Output is correct
17 Correct 149 ms 78328 KB Output is correct
18 Correct 150 ms 78324 KB Output is correct
19 Correct 28 ms 75460 KB Output is correct
20 Correct 28 ms 75396 KB Output is correct
21 Correct 32 ms 75340 KB Output is correct
22 Correct 27 ms 75476 KB Output is correct
23 Correct 27 ms 75428 KB Output is correct
24 Correct 30 ms 75368 KB Output is correct
25 Correct 28 ms 75372 KB Output is correct
26 Correct 29 ms 75492 KB Output is correct
27 Correct 27 ms 75532 KB Output is correct
28 Correct 28 ms 75476 KB Output is correct
29 Correct 30 ms 75480 KB Output is correct
30 Correct 30 ms 75476 KB Output is correct
31 Correct 29 ms 75492 KB Output is correct
32 Correct 28 ms 75432 KB Output is correct
33 Correct 29 ms 75476 KB Output is correct
34 Correct 29 ms 75420 KB Output is correct
35 Correct 29 ms 75488 KB Output is correct
36 Correct 29 ms 75488 KB Output is correct
37 Correct 29 ms 75440 KB Output is correct
38 Correct 29 ms 75340 KB Output is correct
39 Correct 28 ms 75436 KB Output is correct
40 Incorrect 321 ms 85920 KB Output isn't correct
41 Halted 0 ms 0 KB -