oj.uz

Submission #799921

# Submission time Handle Problem Language Result Execution time Memory
799921 2023-08-01T08:23:12 Z NothingXD Crossing (JOI21_crossing) C++17
100 / 100
 682 ms 21556 KB 
#include<bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

void debug_out(){cerr<<endl;}
template<typename Head, typename... Tail>
void debug_out(Head H, Tail... T){
	cerr << H << ' ';
	debug_out(T...);
}

#define debug(...) cerr << "(" << #__VA_ARGS__ << "): ", debug_out(__VA_ARGS__)
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define MP(x, y) make_pair(x, y)

const int maxn = 2e5 + 10;
const int alpha = 27;
int base[2] = {313, 369}, mod[2] = {(int)1e9+7, (int)1e9+9};

int n, q, a[maxn][3], pw[maxn][2], val[maxn][3][2], seg[maxn << 2][2], lazy[maxn << 2];
int hsh[alpha][2];
bool mark[alpha];
void shift(int v, int l, int r);

void change(int v, int l, int r, int ql, int qr, int x){
	//if (v == 1) debug(ql, qr, x);
	if (qr <= l || r <= ql) return;
	if (ql <= l && r <= qr){
	//	debug(l, r, x);
		seg[v][0] = val[r-l][x][0];
		seg[v][1] = val[r-l][x][1];
		lazy[v] = x;
		return;
	}
	shift(v, l, r);
	int mid = (l + r) >> 1;
	change(v << 1, l, mid, ql, qr, x);
	change(v << 1 | 1, mid, r, ql, qr, x);
	for (int i = 0; i < 2; i++){
		seg[v][i] = (1ll * seg[v << 1][i] * pw[r-mid][i] + seg[v << 1 | 1][i]) % mod[i];
	}
}

void shift(int v, int l, int r){
	if (lazy[v] == -1) return;
	int mid = (l + r) >> 1;
	change(v << 1, l, mid, l, mid, lazy[v]);
	change(v << 1 | 1, mid, r, mid, r, lazy[v]);
	lazy[v] = -1;
}


bool check(){
	//return MP(hsh[1][0], hsh[1][1]) == MP(seg[1][0], seg[1][1]);
	for (int i = 0; i < alpha; i++){
		if (mark[i] && MP(hsh[i][0], hsh[i][1]) == MP(seg[1][0], seg[1][1])){
		//	debug(i);
			return true;
		}
	}
	return false;
}

int main(){

	memset(lazy, -1, sizeof lazy);

	string s[3];

	cin >> n >> s[0] >> s[1] >> s[2];
	for (int j = 0; j < 3; j++){
		for (int i = 1; i <= n; i++){
			a[i][j] = (s[j][i-1] == 'J'? 0: (s[j][i-1] == 'O'? 1: 2));
		//	debug(i, j, a[i][j]);
		}
	}

	pw[0][0] = pw[0][1] = 1;
	for (int i = 1; i <= n; i++){
		for (int j = 0; j < 2; j++){
			pw[i][j] = 1ll * pw[i-1][j] * base[j] % mod[j];
		}
	}

	for (int i = 1; i <= n; i++){
		for (int j = 0; j < 3; j++){
			for (int k = 0; k < 2; k++){
				val[i][j][k] = (1ll * val[i-1][j][k] * base[k] + (j+1)) % mod[k];
			}
		}
	}

	for (int x1 = 0; x1 < 3; x1++){
		for (int x2 = 0; x2 < 3; x2++){
			for (int x3 = 0; x3 < 3; x3++){
				if ((x1 + x2 + x3) % 3 != 1) continue;
				int idx = x3 + x2 * 3 + x1 * 9;
			//	debug(x1, x2, x3, idx);
				mark[idx] = true;
				for (int i = 1; i <= n; i++){
					int tmp = (a[i][0] * x1 + a[i][1] * x2 + a[i][2] * x3) % 3;
				//	if (x1 == 0 && x2 == 0 && x3 == 2) debug(i, tmp);
					for (int j = 0; j < 2; j++){
						hsh[idx][j] = (1ll * hsh[idx][j] * base[j] + (tmp+1)) % mod[j];
					}
				}
			}
		}
	}

	cin >> q;
	string t;
	cin >> t;
	for (int i = 1; i <= n; i++){
		int tmp = (t[i-1] == 'J'? 0: (t[i-1] == 'O'? 1: 2));
		change(1, 1, n+1, i, i+1, tmp);
	}
	cout << (check()? "Yes\n": "No\n");
	while(q--){
		int l, r; char c; cin >> l >> r >> c;
		
		int tmp = (c == 'J'? 0: (c == 'O'? 1: 2));
		change(1, 1, n+1, l, r+1, tmp);
		cout << (check()? "Yes\n": "No\n");
	}

	return 0;
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 349 ms 4640 KB Output is correct
2 Correct 314 ms 4740 KB Output is correct
3 Correct 321 ms 4632 KB Output is correct
4 Correct 295 ms 4620 KB Output is correct
5 Correct 297 ms 4752 KB Output is correct
6 Correct 290 ms 4596 KB Output is correct
7 Correct 330 ms 4676 KB Output is correct
8 Correct 308 ms 4748 KB Output is correct
9 Correct 306 ms 4700 KB Output is correct
10 Correct 308 ms 4704 KB Output is correct
11 Correct 344 ms 4796 KB Output is correct
12 Correct 329 ms 4836 KB Output is correct
13 Correct 312 ms 4780 KB Output is correct
14 Correct 325 ms 4700 KB Output is correct
15 Correct 325 ms 4792 KB Output is correct
16 Correct 326 ms 4848 KB Output is correct
17 Correct 314 ms 4704 KB Output is correct
18 Correct 326 ms 4676 KB Output is correct

Subtask #2
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 349 ms 4640 KB Output is correct
2 Correct 314 ms 4740 KB Output is correct
3 Correct 321 ms 4632 KB Output is correct
4 Correct 295 ms 4620 KB Output is correct
5 Correct 297 ms 4752 KB Output is correct
6 Correct 290 ms 4596 KB Output is correct
7 Correct 330 ms 4676 KB Output is correct
8 Correct 308 ms 4748 KB Output is correct
9 Correct 306 ms 4700 KB Output is correct
10 Correct 308 ms 4704 KB Output is correct
11 Correct 344 ms 4796 KB Output is correct
12 Correct 329 ms 4836 KB Output is correct
13 Correct 312 ms 4780 KB Output is correct
14 Correct 325 ms 4700 KB Output is correct
15 Correct 325 ms 4792 KB Output is correct
16 Correct 326 ms 4848 KB Output is correct
17 Correct 314 ms 4704 KB Output is correct
18 Correct 326 ms 4676 KB Output is correct
19 Correct 679 ms 18680 KB Output is correct
20 Correct 669 ms 18672 KB Output is correct
21 Correct 525 ms 17556 KB Output is correct
22 Correct 533 ms 16604 KB Output is correct
23 Correct 411 ms 5320 KB Output is correct
24 Correct 439 ms 5272 KB Output is correct
25 Correct 682 ms 18172 KB Output is correct
26 Correct 648 ms 18152 KB Output is correct
27 Correct 643 ms 18368 KB Output is correct
28 Correct 613 ms 18416 KB Output is correct
29 Correct 610 ms 18160 KB Output is correct
30 Correct 435 ms 5580 KB Output is correct
31 Correct 610 ms 18388 KB Output is correct
32 Correct 593 ms 17580 KB Output is correct
33 Correct 379 ms 5484 KB Output is correct
34 Correct 572 ms 18340 KB Output is correct
35 Correct 481 ms 15960 KB Output is correct
36 Correct 380 ms 5512 KB Output is correct
37 Correct 377 ms 5492 KB Output is correct
38 Correct 631 ms 18384 KB Output is correct
39 Correct 531 ms 18348 KB Output is correct
40 Correct 514 ms 13168 KB Output is correct
41 Correct 638 ms 18828 KB Output is correct
42 Correct 408 ms 18720 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 349 ms 4640 KB Output is correct
2 Correct 314 ms 4740 KB Output is correct
3 Correct 321 ms 4632 KB Output is correct
4 Correct 295 ms 4620 KB Output is correct
5 Correct 297 ms 4752 KB Output is correct
6 Correct 290 ms 4596 KB Output is correct
7 Correct 330 ms 4676 KB Output is correct
8 Correct 308 ms 4748 KB Output is correct
9 Correct 306 ms 4700 KB Output is correct
10 Correct 308 ms 4704 KB Output is correct
11 Correct 344 ms 4796 KB Output is correct
12 Correct 329 ms 4836 KB Output is correct
13 Correct 312 ms 4780 KB Output is correct
14 Correct 325 ms 4700 KB Output is correct
15 Correct 325 ms 4792 KB Output is correct
16 Correct 326 ms 4848 KB Output is correct
17 Correct 314 ms 4704 KB Output is correct
18 Correct 326 ms 4676 KB Output is correct
19 Correct 306 ms 4976 KB Output is correct
20 Correct 321 ms 5016 KB Output is correct
21 Correct 308 ms 5064 KB Output is correct
22 Correct 278 ms 5304 KB Output is correct
23 Correct 319 ms 5576 KB Output is correct
24 Correct 294 ms 5452 KB Output is correct
25 Correct 329 ms 5564 KB Output is correct
26 Correct 307 ms 5476 KB Output is correct
27 Correct 309 ms 5568 KB Output is correct
28 Correct 283 ms 5304 KB Output is correct
29 Correct 320 ms 5572 KB Output is correct
30 Correct 280 ms 5528 KB Output is correct
31 Correct 305 ms 5572 KB Output is correct
32 Correct 302 ms 5452 KB Output is correct
33 Correct 308 ms 5472 KB Output is correct
34 Correct 293 ms 5416 KB Output is correct
35 Correct 312 ms 5580 KB Output is correct
36 Correct 327 ms 5580 KB Output is correct
37 Correct 308 ms 5560 KB Output is correct
38 Correct 309 ms 5480 KB Output is correct
39 Correct 306 ms 5576 KB Output is correct
40 Correct 304 ms 5580 KB Output is correct
41 Correct 307 ms 5572 KB Output is correct
42 Correct 336 ms 5492 KB Output is correct
43 Correct 315 ms 5484 KB Output is correct
44 Correct 330 ms 5568 KB Output is correct

Subtask #4
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 349 ms 4640 KB Output is correct
2 Correct 314 ms 4740 KB Output is correct
3 Correct 321 ms 4632 KB Output is correct
4 Correct 295 ms 4620 KB Output is correct
5 Correct 297 ms 4752 KB Output is correct
6 Correct 290 ms 4596 KB Output is correct
7 Correct 330 ms 4676 KB Output is correct
8 Correct 308 ms 4748 KB Output is correct
9 Correct 306 ms 4700 KB Output is correct
10 Correct 308 ms 4704 KB Output is correct
11 Correct 344 ms 4796 KB Output is correct
12 Correct 329 ms 4836 KB Output is correct
13 Correct 312 ms 4780 KB Output is correct
14 Correct 325 ms 4700 KB Output is correct
15 Correct 325 ms 4792 KB Output is correct
16 Correct 326 ms 4848 KB Output is correct
17 Correct 314 ms 4704 KB Output is correct
18 Correct 326 ms 4676 KB Output is correct
19 Correct 679 ms 18680 KB Output is correct
20 Correct 669 ms 18672 KB Output is correct
21 Correct 525 ms 17556 KB Output is correct
22 Correct 533 ms 16604 KB Output is correct
23 Correct 411 ms 5320 KB Output is correct
24 Correct 439 ms 5272 KB Output is correct
25 Correct 682 ms 18172 KB Output is correct
26 Correct 648 ms 18152 KB Output is correct
27 Correct 643 ms 18368 KB Output is correct
28 Correct 613 ms 18416 KB Output is correct
29 Correct 610 ms 18160 KB Output is correct
30 Correct 435 ms 5580 KB Output is correct
31 Correct 610 ms 18388 KB Output is correct
32 Correct 593 ms 17580 KB Output is correct
33 Correct 379 ms 5484 KB Output is correct
34 Correct 572 ms 18340 KB Output is correct
35 Correct 481 ms 15960 KB Output is correct
36 Correct 380 ms 5512 KB Output is correct
37 Correct 377 ms 5492 KB Output is correct
38 Correct 631 ms 18384 KB Output is correct
39 Correct 531 ms 18348 KB Output is correct
40 Correct 514 ms 13168 KB Output is correct
41 Correct 638 ms 18828 KB Output is correct
42 Correct 408 ms 18720 KB Output is correct
43 Correct 306 ms 4976 KB Output is correct
44 Correct 321 ms 5016 KB Output is correct
45 Correct 308 ms 5064 KB Output is correct
46 Correct 278 ms 5304 KB Output is correct
47 Correct 319 ms 5576 KB Output is correct
48 Correct 294 ms 5452 KB Output is correct
49 Correct 329 ms 5564 KB Output is correct
50 Correct 307 ms 5476 KB Output is correct
51 Correct 309 ms 5568 KB Output is correct
52 Correct 283 ms 5304 KB Output is correct
53 Correct 320 ms 5572 KB Output is correct
54 Correct 280 ms 5528 KB Output is correct
55 Correct 305 ms 5572 KB Output is correct
56 Correct 302 ms 5452 KB Output is correct
57 Correct 308 ms 5472 KB Output is correct
58 Correct 293 ms 5416 KB Output is correct
59 Correct 312 ms 5580 KB Output is correct
60 Correct 327 ms 5580 KB Output is correct
61 Correct 308 ms 5560 KB Output is correct
62 Correct 309 ms 5480 KB Output is correct
63 Correct 306 ms 5576 KB Output is correct
64 Correct 304 ms 5580 KB Output is correct
65 Correct 307 ms 5572 KB Output is correct
66 Correct 336 ms 5492 KB Output is correct
67 Correct 315 ms 5484 KB Output is correct
68 Correct 330 ms 5568 KB Output is correct
69 Correct 540 ms 19352 KB Output is correct
70 Correct 646 ms 21344 KB Output is correct
71 Correct 400 ms 7152 KB Output is correct
72 Correct 376 ms 7156 KB Output is correct
73 Correct 376 ms 7080 KB Output is correct
74 Correct 493 ms 19344 KB Output is correct
75 Correct 373 ms 7028 KB Output is correct
76 Correct 535 ms 21308 KB Output is correct
77 Correct 535 ms 19608 KB Output is correct
78 Correct 379 ms 7116 KB Output is correct
79 Correct 380 ms 7120 KB Output is correct
80 Correct 480 ms 17972 KB Output is correct
81 Correct 387 ms 7036 KB Output is correct
82 Correct 547 ms 21320 KB Output is correct
83 Correct 532 ms 20504 KB Output is correct
84 Correct 372 ms 7132 KB Output is correct
85 Correct 374 ms 7044 KB Output is correct
86 Correct 513 ms 18620 KB Output is correct
87 Correct 576 ms 21284 KB Output is correct
88 Correct 402 ms 7060 KB Output is correct
89 Correct 512 ms 19848 KB Output is correct
90 Correct 566 ms 21280 KB Output is correct
91 Correct 404 ms 7148 KB Output is correct
92 Correct 490 ms 18412 KB Output is correct
93 Correct 369 ms 7116 KB Output is correct
94 Correct 373 ms 7016 KB Output is correct
95 Correct 450 ms 7256 KB Output is correct
96 Correct 580 ms 21068 KB Output is correct
97 Correct 534 ms 21308 KB Output is correct
98 Correct 487 ms 15632 KB Output is correct
99 Correct 657 ms 21556 KB Output is correct
100 Correct 409 ms 20720 KB Output is correct