oj.uz

Submission #537633

# Submission time Handle Problem Language Result Execution time Memory
537633 2022-03-15T10:18:57 Z S2speed Crossing (JOI21_crossing) C++17
49 / 100
 7000 ms 43432 KB 
#include<bits/stdc++.h>

using namespace std;

#pragma GCC optimize("Ofast")

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

#define all(x) x.begin() , x.end()
#define sze(x) (int)(x.size())
typedef long long ll;
typedef pair<ll , ll> pll;

const ll maxn = 2e5 + 16 , inf = 2e16;

set<vector<int>> s;

vector<int> operator+ (vector<int> a , vector<int> b){
	vector<int> res(27);
	for(int i = 0 ; i < 27 ; i++){
		if(a[i] == b[i]){
			res[i] = a[i];
		} else {
			res[i] = 3 - a[i] - b[i];
		}
	}
	return res;
}

struct segtree {

	int sz = 1;
	vector<int> val , laz;

	void init(int n){
		while(sz < n) sz <<= 1;
		val.assign(sz << 1 , 0);
		laz.assign(sz << 1 , -1);
		return;
	}

	void shift(int x , int lx , int rx){
		int h = laz[x];
		laz[x] = -1;
		if(h == -1) return;
		val[x] = h * (rx - lx);
		if(rx - lx == 1) return;
		int ln = (x << 1) + 1 , rn = ln + 1;
		laz[ln] = laz[rn] = h;
		return;
	}

	void set(int l , int r , int k , int x , int lx , int rx){
		shift(x , lx , rx);
		if(rx <= l || lx >= r) return;
		if(rx <= r && lx >= l){
			laz[x] = k;
			shift(x , lx , rx);
			return;
		}
		int m = (rx + lx) >> 1 , ln = (x << 1) + 1 , rn = ln + 1;
		set(l , r , k , ln , lx , m); set(l , r , k , rn , m , rx);
		val[x] = val[ln] + val[rn];
		return;
	}

	void set(int l , int r , int k){
		set(l , r , k , 0 , 0 , sz);
	}

};

vector<int> v[27] , a[27];
int f[maxn] , lb[27][maxn];
segtree st[27][3];

bool check(){
	auto it = s.begin() , et = s.end();
	while(it != et){
		vector<int> h = *it; ++it;
		bool res = true;
		for(int k = 0 ; k < 27 && res ; k++){
			if(st[k][0].val[0] > 0 && h[k] != 0){
				res = false;
			}
			if(st[k][1].val[0] > 0 && h[k] != 1){
				res = false;
			}
			if(st[k][2].val[0] > 0 && h[k] != 2){
				res = false;
			}
		}
		if(res) return true;
	}
	return false;
}

int main(){
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);

	memset(f , 0 , sizeof(f));
	vector<int> g(27);
	int o = 27;
	for(int t = 0 ; t < 3 ; t++){
		for(int i = 0 ; i < 27 ; i++){
			int h = i % o;
			g[i] = h / (o / 3);
//			cout<<a[i]<<' ';
		}
//		cout<<'\n';
		o /= 3;
		s.insert(g);
	}
	bool hm = true;
	while(hm){
		hm = false;
		auto et = s.end();
		for(auto it = s.begin() ; it != et && !hm ; ++it){
			for(auto jt = it ; jt != et && !hm ; ++jt){
				vector<int> res = (*it) + (*jt);
				if(!s.count(res)){
					s.insert(res);
					hm = true;
				}
			}
		}
	}
//	cout<<"---------------------------\n";
//	auto it = s.begin() , et = s.end();
//	while(it != et){
//		vector<int> res = *it;
//		for(int i = 0 ; i < 27 ; i++){
//			cout<<res[i]<<' ';
//		}
//		cout<<'\n';
//		++it;
//	}
	int n;
	cin>>n;
	o = 9;
	for(int t = 0 ; t < 3 ; t++){
		for(int i = 0 ; i < n ; i++){
			int h;
			char c;
			cin>>c;
			if(c == 'J'){
				h = 0;
			} else if(c == 'O'){
				h = 1;
			} else {
				h = 2;
			}
			f[i] += h * o;
		}
		o /= 3;
	}
	int q;
	cin>>q;
	for(int i = 0 ; i < n ; i++){
		char c;
		int h;
		cin>>c;
		if(c == 'J'){
			h = 0;
		} else if(c == 'O'){
			h = 1;
		} else {
			h = 2;
		}
		a[f[i]].push_back(h);
		v[f[i]].push_back(i);
	}
	for(int k = 0 ; k < 27 ; k++){
		int vs = sze(v[k]);
		lb[k][n] = vs;
		for(int i = n - 1 ; ~i ; i--){
			lb[k][i] = lb[k][i + 1];
			lb[k][i] -= (f[i] == k);
		}
	}
	for(int k = 0 ; k < 27 ; k++){
		int vs = sze(v[k]);
		st[k][0].init(vs); st[k][1].init(vs); st[k][2].init(vs);
		for(int i = 0 ; i < vs ; i++){
			st[k][a[k][i]].set(i , i + 1 , 1);
		}
	}
	cout<<(check() ? "Yes\n" : "No\n");
	for(int i = 0 ; i < q ; i++){
		int l , r , h;
		char c;
		cin>>l>>r>>c; l--;
		if(c == 'J'){
			h = 0;
		} else if(c == 'O'){
			h = 1;
		} else {
			h = 2;
		}
		for(int k = 0 ; k < 27 ; k++){
			if(v[k].empty()) continue;
			int lk = lb[k][l] , rk = lb[k][r];
//			cout<<k<<' '<<lk<<' '<<rk<<' '<<h<<' '<<Cnt[k][0]<<' '<<Cnt[k][1]<<' '<<Cnt[k][2]<<'\n';
			st[k][0].set(lk , rk , h == 0); st[k][1].set(lk , rk , h == 1); st[k][2].set(lk , rk , h == 2);
		}
		cout<<(check() ? "Yes\n" : "No\n");
	}
	return 0;
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 243 ms 1764 KB Output is correct
2 Correct 323 ms 1836 KB Output is correct
3 Correct 295 ms 1796 KB Output is correct
4 Correct 266 ms 1760 KB Output is correct
5 Correct 223 ms 1804 KB Output is correct
6 Correct 248 ms 1736 KB Output is correct
7 Correct 249 ms 1740 KB Output is correct
8 Correct 246 ms 1784 KB Output is correct
9 Correct 277 ms 1864 KB Output is correct
10 Correct 249 ms 1800 KB Output is correct
11 Correct 269 ms 1796 KB Output is correct
12 Correct 268 ms 1912 KB Output is correct
13 Correct 254 ms 1824 KB Output is correct
14 Correct 313 ms 1832 KB Output is correct
15 Correct 250 ms 1772 KB Output is correct
16 Correct 264 ms 1868 KB Output is correct
17 Correct 270 ms 1768 KB Output is correct
18 Correct 283 ms 1840 KB Output is correct

Subtask #2
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 243 ms 1764 KB Output is correct
2 Correct 323 ms 1836 KB Output is correct
3 Correct 295 ms 1796 KB Output is correct
4 Correct 266 ms 1760 KB Output is correct
5 Correct 223 ms 1804 KB Output is correct
6 Correct 248 ms 1736 KB Output is correct
7 Correct 249 ms 1740 KB Output is correct
8 Correct 246 ms 1784 KB Output is correct
9 Correct 277 ms 1864 KB Output is correct
10 Correct 249 ms 1800 KB Output is correct
11 Correct 269 ms 1796 KB Output is correct
12 Correct 268 ms 1912 KB Output is correct
13 Correct 254 ms 1824 KB Output is correct
14 Correct 313 ms 1832 KB Output is correct
15 Correct 250 ms 1772 KB Output is correct
16 Correct 264 ms 1868 KB Output is correct
17 Correct 270 ms 1768 KB Output is correct
18 Correct 283 ms 1840 KB Output is correct
19 Correct 1573 ms 43200 KB Output is correct
20 Correct 1448 ms 43316 KB Output is correct
21 Correct 866 ms 32556 KB Output is correct
22 Correct 895 ms 30320 KB Output is correct
23 Correct 517 ms 3616 KB Output is correct
24 Correct 482 ms 3612 KB Output is correct
25 Correct 982 ms 43412 KB Output is correct
26 Correct 986 ms 43116 KB Output is correct
27 Correct 1059 ms 40256 KB Output is correct
28 Correct 1039 ms 43292 KB Output is correct
29 Correct 1014 ms 39576 KB Output is correct
30 Correct 542 ms 3704 KB Output is correct
31 Correct 957 ms 39924 KB Output is correct
32 Correct 960 ms 32208 KB Output is correct
33 Correct 501 ms 3588 KB Output is correct
34 Correct 1004 ms 39984 KB Output is correct
35 Correct 823 ms 28204 KB Output is correct
36 Correct 523 ms 3524 KB Output is correct
37 Correct 512 ms 3532 KB Output is correct
38 Correct 670 ms 36988 KB Output is correct
39 Correct 569 ms 43432 KB Output is correct
40 Correct 699 ms 23056 KB Output is correct
41 Correct 736 ms 37300 KB Output is correct
42 Correct 222 ms 37172 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 243 ms 1764 KB Output is correct
2 Correct 323 ms 1836 KB Output is correct
3 Correct 295 ms 1796 KB Output is correct
4 Correct 266 ms 1760 KB Output is correct
5 Correct 223 ms 1804 KB Output is correct
6 Correct 248 ms 1736 KB Output is correct
7 Correct 249 ms 1740 KB Output is correct
8 Correct 246 ms 1784 KB Output is correct
9 Correct 277 ms 1864 KB Output is correct
10 Correct 249 ms 1800 KB Output is correct
11 Correct 269 ms 1796 KB Output is correct
12 Correct 268 ms 1912 KB Output is correct
13 Correct 254 ms 1824 KB Output is correct
14 Correct 313 ms 1832 KB Output is correct
15 Correct 250 ms 1772 KB Output is correct
16 Correct 264 ms 1868 KB Output is correct
17 Correct 270 ms 1768 KB Output is correct
18 Correct 283 ms 1840 KB Output is correct
19 Correct 428 ms 1816 KB Output is correct
20 Correct 410 ms 1948 KB Output is correct
21 Correct 367 ms 1860 KB Output is correct
22 Correct 242 ms 1916 KB Output is correct
23 Correct 348 ms 1848 KB Output is correct
24 Correct 303 ms 1832 KB Output is correct
25 Correct 354 ms 1840 KB Output is correct
26 Correct 270 ms 1844 KB Output is correct
27 Correct 349 ms 1860 KB Output is correct
28 Correct 324 ms 1704 KB Output is correct
29 Correct 394 ms 1824 KB Output is correct
30 Correct 258 ms 1740 KB Output is correct
31 Correct 405 ms 1824 KB Output is correct
32 Correct 387 ms 1852 KB Output is correct
33 Correct 399 ms 1988 KB Output is correct
34 Correct 305 ms 1824 KB Output is correct
35 Correct 422 ms 1848 KB Output is correct
36 Correct 365 ms 1848 KB Output is correct
37 Correct 414 ms 1832 KB Output is correct
38 Correct 404 ms 1844 KB Output is correct
39 Correct 375 ms 1800 KB Output is correct
40 Correct 413 ms 1820 KB Output is correct
41 Correct 354 ms 1796 KB Output is correct
42 Correct 378 ms 1856 KB Output is correct
43 Correct 303 ms 1852 KB Output is correct
44 Correct 408 ms 1916 KB Output is correct

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 243 ms 1764 KB Output is correct
2 Correct 323 ms 1836 KB Output is correct
3 Correct 295 ms 1796 KB Output is correct
4 Correct 266 ms 1760 KB Output is correct
5 Correct 223 ms 1804 KB Output is correct
6 Correct 248 ms 1736 KB Output is correct
7 Correct 249 ms 1740 KB Output is correct
8 Correct 246 ms 1784 KB Output is correct
9 Correct 277 ms 1864 KB Output is correct
10 Correct 249 ms 1800 KB Output is correct
11 Correct 269 ms 1796 KB Output is correct
12 Correct 268 ms 1912 KB Output is correct
13 Correct 254 ms 1824 KB Output is correct
14 Correct 313 ms 1832 KB Output is correct
15 Correct 250 ms 1772 KB Output is correct
16 Correct 264 ms 1868 KB Output is correct
17 Correct 270 ms 1768 KB Output is correct
18 Correct 283 ms 1840 KB Output is correct
19 Correct 1573 ms 43200 KB Output is correct
20 Correct 1448 ms 43316 KB Output is correct
21 Correct 866 ms 32556 KB Output is correct
22 Correct 895 ms 30320 KB Output is correct
23 Correct 517 ms 3616 KB Output is correct
24 Correct 482 ms 3612 KB Output is correct
25 Correct 982 ms 43412 KB Output is correct
26 Correct 986 ms 43116 KB Output is correct
27 Correct 1059 ms 40256 KB Output is correct
28 Correct 1039 ms 43292 KB Output is correct
29 Correct 1014 ms 39576 KB Output is correct
30 Correct 542 ms 3704 KB Output is correct
31 Correct 957 ms 39924 KB Output is correct
32 Correct 960 ms 32208 KB Output is correct
33 Correct 501 ms 3588 KB Output is correct
34 Correct 1004 ms 39984 KB Output is correct
35 Correct 823 ms 28204 KB Output is correct
36 Correct 523 ms 3524 KB Output is correct
37 Correct 512 ms 3532 KB Output is correct
38 Correct 670 ms 36988 KB Output is correct
39 Correct 569 ms 43432 KB Output is correct
40 Correct 699 ms 23056 KB Output is correct
41 Correct 736 ms 37300 KB Output is correct
42 Correct 222 ms 37172 KB Output is correct
43 Correct 428 ms 1816 KB Output is correct
44 Correct 410 ms 1948 KB Output is correct
45 Correct 367 ms 1860 KB Output is correct
46 Correct 242 ms 1916 KB Output is correct
47 Correct 348 ms 1848 KB Output is correct
48 Correct 303 ms 1832 KB Output is correct
49 Correct 354 ms 1840 KB Output is correct
50 Correct 270 ms 1844 KB Output is correct
51 Correct 349 ms 1860 KB Output is correct
52 Correct 324 ms 1704 KB Output is correct
53 Correct 394 ms 1824 KB Output is correct
54 Correct 258 ms 1740 KB Output is correct
55 Correct 405 ms 1824 KB Output is correct
56 Correct 387 ms 1852 KB Output is correct
57 Correct 399 ms 1988 KB Output is correct
58 Correct 305 ms 1824 KB Output is correct
59 Correct 422 ms 1848 KB Output is correct
60 Correct 365 ms 1848 KB Output is correct
61 Correct 414 ms 1832 KB Output is correct
62 Correct 404 ms 1844 KB Output is correct
63 Correct 375 ms 1800 KB Output is correct
64 Correct 413 ms 1820 KB Output is correct
65 Correct 354 ms 1796 KB Output is correct
66 Correct 378 ms 1856 KB Output is correct
67 Correct 303 ms 1852 KB Output is correct
68 Correct 408 ms 1916 KB Output is correct
69 Execution timed out 7034 ms 31672 KB Time limit exceeded
70 Halted 0 ms 0 KB -