oj.uz

Submission #1086643

# Submission time Handle Problem Language Result Execution time Memory
1086643 2024-09-11T07:46:26 Z peacebringer1667 Crossing (JOI21_crossing) C++17
49 / 100
 387 ms 28628 KB 
#include<bits/stdc++.h>
#define ll long long
#define ldb long double
#define fi first
#define se second
#define sza(a) (int)a.size()
#define pir pair<int,int>
#define pirll pair<ll,ll>
#define int long long
using namespace std;
const int base = 137;
const int modu = 1e9 + 7;
const int maxn = 3e5 + 5;

//////////
int pw[maxn],pre[maxn];
char gc(int x){
	if (x == 1) return 'J';
	if (x == 2) return 'O';
	return 'I';
}
int gn(char x){
	if (x == 'J') return 1;
	if (x == 'O') return 2;
	return 3;
}
struct Hash{
	vector <int> pre;
	
	void hashing(const string&s){
		if (!s.size()) return;
		pre.clear();
		pre.push_back((ll)pw[1] * (ll)(s[0] - 96) % modu);
		
		for (int i = 1 ; i < s.size() ; i++)
		  pre.push_back(((ll)pre[i - 1] + (ll)(s[i] - 96) * (ll)pw[i + 1] % modu) % modu);
	    
	    for (int &t : pre)
	      if (t < 0) t += modu;
	}
	
	int Val(){
		if (!pre.size()) return -1;
		return pre.back();
	}
};
void prepare_pw(int n){
	for (int i = 0 ; i <= n ; i++){
	  pw[i] = (!i) ? 1 : (ll)pw[i - 1] * (ll)base % modu;
      pre[i] = (!i) ? 1 : (ll)(pre[i - 1] + pw[i]) % modu;
	}
}
set <int> s;
vector <string> S;
bool contain(int x){
	if (!s.size() || *s.rbegin() < x) return 0;
	
	int y = *s.lower_bound(x);
	return (y == x);
}
string Xor(const string &a,const string &b){
	string c = a;
	
	for (int i = 0 ; i < a.size() ; i++){
	    int x = 6 - gn(a[i]) - gn(b[i]);
	    if (x % 3 == 0) x = 3;
	    else x %= 3;
	    
	    c[i] = gc(x);
	  }
	return c;
}
void insertion(const string &t){
	Hash Hash;
	Hash.hashing(t);
	
	if (contain(Hash.Val())) return;
	s.insert(Hash.Val());
	S.push_back(t);
	
	vector <string> lst;
	
	for (const string &st : S){
		string k = Xor(t,st);
		
		Hash.hashing(k);
		if (!contain(Hash.Val()))
		  lst.push_back(k);
	}
	
	if (lst.size())
	  for (const string &k : lst)
	    insertion(k); 
}
void gen_string(int N){
	for (int id = 1 ; id <= 3 ; id++){
		string t;
		cin >> t;
		insertion(t);
	}
}
////////////

struct segment_tree{
	int seg[4*maxn],lazy[4*maxn];
	
	void downlazy(int v,int l,int r){
		if (!lazy[v]) return;
		
		int sum = (pre[r] - pre[l - 1]) % modu;
		seg[v] = (ll)sum * (ll)lazy[v] % modu;
		
		if (l != r){
			lazy[2*v + 1] = lazy[v];
			lazy[2*v + 2] = lazy[v];
		}
		lazy[v] = 0;
	}
	
	void update(int l,int r,int v,int lx,int rx,int val){
		downlazy(v,l,r);
		
		if (l > rx || r < lx) return;
		if (l >= lx && r <= rx){
			lazy[v] = val;
			downlazy(v,l,r);
			return;
		}
		
		int w = (l + r)/2;
		update(l,w,2*v + 1,lx,rx,val);
		update(w + 1,r,2*v + 2,lx,rx,val);
		seg[v] = (ll)(seg[2*v + 1] + seg[2*v + 2]) % modu;
	}
	
	int calc(){
		if (seg[0] < 0) seg[0] += modu;
		return seg[0];
	}
} seg;

void print_ans(bool x){
	if (x) cout << "Yes";
	else cout << "No";
	cout << "\n";
}

signed main(){
	ios_base::sync_with_stdio(false);
	cin.tie(0);cout.tie(0);
	
	//freopen("crossing.inp","r",stdin);
//	freopen("crossing.out","w",stdout);
	int N;
	cin >> N;
	prepare_pw(N);
	gen_string(N);
	
	int Q;
    string QR;
    cin >> Q >> QR;
    for (int i = 1 ; i <= N ; i++)
      seg.update(1,N,0,i,i,(int)QR[i - 1] - 96);
    
	print_ans(contain(seg.calc()));
    while (Q--){
    	int l,r;char c;
    	cin >> l >> r >> c;
    	seg.update(1,N,0,l,r,c - 96);
    	
    	print_ans(contain(seg.calc()));
	}
    
	return 0;
}

Compilation message

Main.cpp: In member function 'void Hash::hashing(const string&)':
Main.cpp:35:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |   for (int i = 1 ; i < s.size() ; i++)
      |                    ~~^~~~~~~~~~
Main.cpp: In function 'std::string Xor(const string&, const string&)':
Main.cpp:64:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   64 |  for (int i = 0 ; i < a.size() ; i++){
      |                   ~~^~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 2392 KB Output is correct
2 Correct 83 ms 2452 KB Output is correct
3 Correct 57 ms 2368 KB Output is correct
4 Correct 67 ms 2372 KB Output is correct
5 Correct 67 ms 2384 KB Output is correct
6 Correct 48 ms 2484 KB Output is correct
7 Correct 68 ms 2444 KB Output is correct
8 Correct 51 ms 2592 KB Output is correct
9 Correct 73 ms 2388 KB Output is correct
10 Correct 52 ms 2620 KB Output is correct
11 Correct 73 ms 2388 KB Output is correct
12 Correct 52 ms 2384 KB Output is correct
13 Correct 52 ms 2584 KB Output is correct
14 Correct 53 ms 2612 KB Output is correct
15 Correct 75 ms 2404 KB Output is correct
16 Correct 52 ms 2388 KB Output is correct
17 Correct 52 ms 2384 KB Output is correct
18 Correct 53 ms 2384 KB Output is correct

Subtask #2
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 2392 KB Output is correct
2 Correct 83 ms 2452 KB Output is correct
3 Correct 57 ms 2368 KB Output is correct
4 Correct 67 ms 2372 KB Output is correct
5 Correct 67 ms 2384 KB Output is correct
6 Correct 48 ms 2484 KB Output is correct
7 Correct 68 ms 2444 KB Output is correct
8 Correct 51 ms 2592 KB Output is correct
9 Correct 73 ms 2388 KB Output is correct
10 Correct 52 ms 2620 KB Output is correct
11 Correct 73 ms 2388 KB Output is correct
12 Correct 52 ms 2384 KB Output is correct
13 Correct 52 ms 2584 KB Output is correct
14 Correct 53 ms 2612 KB Output is correct
15 Correct 75 ms 2404 KB Output is correct
16 Correct 52 ms 2388 KB Output is correct
17 Correct 52 ms 2384 KB Output is correct
18 Correct 53 ms 2384 KB Output is correct
19 Correct 270 ms 16552 KB Output is correct
20 Correct 238 ms 15824 KB Output is correct
21 Correct 175 ms 16184 KB Output is correct
22 Correct 178 ms 15660 KB Output is correct
23 Correct 113 ms 4024 KB Output is correct
24 Correct 84 ms 4200 KB Output is correct
25 Correct 194 ms 16352 KB Output is correct
26 Correct 230 ms 16428 KB Output is correct
27 Correct 196 ms 16408 KB Output is correct
28 Correct 203 ms 16408 KB Output is correct
29 Correct 190 ms 16276 KB Output is correct
30 Correct 125 ms 4196 KB Output is correct
31 Correct 218 ms 16488 KB Output is correct
32 Correct 230 ms 16252 KB Output is correct
33 Correct 89 ms 4228 KB Output is correct
34 Correct 206 ms 16404 KB Output is correct
35 Correct 162 ms 15144 KB Output is correct
36 Correct 99 ms 4148 KB Output is correct
37 Correct 116 ms 4008 KB Output is correct
38 Correct 208 ms 15556 KB Output is correct
39 Correct 146 ms 15380 KB Output is correct
40 Correct 147 ms 10900 KB Output is correct
41 Correct 272 ms 16580 KB Output is correct
42 Correct 105 ms 15124 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 2392 KB Output is correct
2 Correct 83 ms 2452 KB Output is correct
3 Correct 57 ms 2368 KB Output is correct
4 Correct 67 ms 2372 KB Output is correct
5 Correct 67 ms 2384 KB Output is correct
6 Correct 48 ms 2484 KB Output is correct
7 Correct 68 ms 2444 KB Output is correct
8 Correct 51 ms 2592 KB Output is correct
9 Correct 73 ms 2388 KB Output is correct
10 Correct 52 ms 2620 KB Output is correct
11 Correct 73 ms 2388 KB Output is correct
12 Correct 52 ms 2384 KB Output is correct
13 Correct 52 ms 2584 KB Output is correct
14 Correct 53 ms 2612 KB Output is correct
15 Correct 75 ms 2404 KB Output is correct
16 Correct 52 ms 2388 KB Output is correct
17 Correct 52 ms 2384 KB Output is correct
18 Correct 53 ms 2384 KB Output is correct
19 Correct 57 ms 2388 KB Output is correct
20 Correct 60 ms 2312 KB Output is correct
21 Correct 51 ms 2388 KB Output is correct
22 Correct 45 ms 2396 KB Output is correct
23 Correct 80 ms 2424 KB Output is correct
24 Correct 50 ms 2480 KB Output is correct
25 Correct 54 ms 2576 KB Output is correct
26 Correct 48 ms 2384 KB Output is correct
27 Correct 80 ms 2388 KB Output is correct
28 Correct 56 ms 2332 KB Output is correct
29 Correct 75 ms 2476 KB Output is correct
30 Correct 47 ms 2368 KB Output is correct
31 Correct 53 ms 2592 KB Output is correct
32 Correct 80 ms 2388 KB Output is correct
33 Correct 57 ms 2388 KB Output is correct
34 Correct 49 ms 2384 KB Output is correct
35 Correct 54 ms 2384 KB Output is correct
36 Correct 53 ms 2388 KB Output is correct
37 Correct 53 ms 2560 KB Output is correct
38 Correct 54 ms 2388 KB Output is correct
39 Correct 75 ms 2384 KB Output is correct
40 Correct 58 ms 2388 KB Output is correct
41 Correct 60 ms 2508 KB Output is correct
42 Correct 63 ms 2852 KB Output is correct
43 Correct 76 ms 2384 KB Output is correct
44 Correct 54 ms 2384 KB Output is correct

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 2392 KB Output is correct
2 Correct 83 ms 2452 KB Output is correct
3 Correct 57 ms 2368 KB Output is correct
4 Correct 67 ms 2372 KB Output is correct
5 Correct 67 ms 2384 KB Output is correct
6 Correct 48 ms 2484 KB Output is correct
7 Correct 68 ms 2444 KB Output is correct
8 Correct 51 ms 2592 KB Output is correct
9 Correct 73 ms 2388 KB Output is correct
10 Correct 52 ms 2620 KB Output is correct
11 Correct 73 ms 2388 KB Output is correct
12 Correct 52 ms 2384 KB Output is correct
13 Correct 52 ms 2584 KB Output is correct
14 Correct 53 ms 2612 KB Output is correct
15 Correct 75 ms 2404 KB Output is correct
16 Correct 52 ms 2388 KB Output is correct
17 Correct 52 ms 2384 KB Output is correct
18 Correct 53 ms 2384 KB Output is correct
19 Correct 270 ms 16552 KB Output is correct
20 Correct 238 ms 15824 KB Output is correct
21 Correct 175 ms 16184 KB Output is correct
22 Correct 178 ms 15660 KB Output is correct
23 Correct 113 ms 4024 KB Output is correct
24 Correct 84 ms 4200 KB Output is correct
25 Correct 194 ms 16352 KB Output is correct
26 Correct 230 ms 16428 KB Output is correct
27 Correct 196 ms 16408 KB Output is correct
28 Correct 203 ms 16408 KB Output is correct
29 Correct 190 ms 16276 KB Output is correct
30 Correct 125 ms 4196 KB Output is correct
31 Correct 218 ms 16488 KB Output is correct
32 Correct 230 ms 16252 KB Output is correct
33 Correct 89 ms 4228 KB Output is correct
34 Correct 206 ms 16404 KB Output is correct
35 Correct 162 ms 15144 KB Output is correct
36 Correct 99 ms 4148 KB Output is correct
37 Correct 116 ms 4008 KB Output is correct
38 Correct 208 ms 15556 KB Output is correct
39 Correct 146 ms 15380 KB Output is correct
40 Correct 147 ms 10900 KB Output is correct
41 Correct 272 ms 16580 KB Output is correct
42 Correct 105 ms 15124 KB Output is correct
43 Correct 57 ms 2388 KB Output is correct
44 Correct 60 ms 2312 KB Output is correct
45 Correct 51 ms 2388 KB Output is correct
46 Correct 45 ms 2396 KB Output is correct
47 Correct 80 ms 2424 KB Output is correct
48 Correct 50 ms 2480 KB Output is correct
49 Correct 54 ms 2576 KB Output is correct
50 Correct 48 ms 2384 KB Output is correct
51 Correct 80 ms 2388 KB Output is correct
52 Correct 56 ms 2332 KB Output is correct
53 Correct 75 ms 2476 KB Output is correct
54 Correct 47 ms 2368 KB Output is correct
55 Correct 53 ms 2592 KB Output is correct
56 Correct 80 ms 2388 KB Output is correct
57 Correct 57 ms 2388 KB Output is correct
58 Correct 49 ms 2384 KB Output is correct
59 Correct 54 ms 2384 KB Output is correct
60 Correct 53 ms 2388 KB Output is correct
61 Correct 53 ms 2560 KB Output is correct
62 Correct 54 ms 2388 KB Output is correct
63 Correct 75 ms 2384 KB Output is correct
64 Correct 58 ms 2388 KB Output is correct
65 Correct 60 ms 2508 KB Output is correct
66 Correct 63 ms 2852 KB Output is correct
67 Correct 76 ms 2384 KB Output is correct
68 Correct 54 ms 2384 KB Output is correct
69 Correct 357 ms 24740 KB Output is correct
70 Correct 376 ms 27592 KB Output is correct
71 Correct 88 ms 4076 KB Output is correct
72 Correct 91 ms 4272 KB Output is correct
73 Correct 100 ms 4140 KB Output is correct
74 Correct 186 ms 15900 KB Output is correct
75 Correct 113 ms 4256 KB Output is correct
76 Correct 213 ms 17200 KB Output is correct
77 Correct 194 ms 16064 KB Output is correct
78 Correct 103 ms 4116 KB Output is correct
79 Correct 89 ms 4136 KB Output is correct
80 Correct 273 ms 23000 KB Output is correct
81 Correct 97 ms 4420 KB Output is correct
82 Correct 387 ms 28628 KB Output is correct
83 Correct 360 ms 27704 KB Output is correct
84 Correct 117 ms 4552 KB Output is correct
85 Correct 97 ms 4560 KB Output is correct
86 Correct 272 ms 23984 KB Output is correct
87 Correct 306 ms 28616 KB Output is correct
88 Correct 103 ms 4512 KB Output is correct
89 Correct 300 ms 26936 KB Output is correct
90 Correct 337 ms 28356 KB Output is correct
91 Correct 97 ms 4296 KB Output is correct
92 Incorrect 298 ms 22952 KB Output isn't correct
93 Halted 0 ms 0 KB -