oj.uz

Submission #479399

# Submission time Handle Problem Language Result Execution time Memory
479399 2021-10-11T15:23:52 Z Arvin Crossing (JOI21_crossing) C++17
26 / 100
 7000 ms 10640 KB 
#include <bits/stdc++.h>

using namespace std;

#define ull unsigned long long
#define ll long long
#define ui unsigned int
#define us unsigned short
#define inf_int 1e9
#define inf_ll 1e18
#define mod 1000000007
#define smod 998244353

const int maxN = 2e5 + 5;
const ll base = 2309;

ll n;
ll prefix[maxN];

ll convert(char c){
	if(c == 'J') return 0;
	else if(c == 'O') return 1;
	else if(c == 'I') return 2;
	return 3;
}

struct SegTree { // index start from 0 (v)
	ll tree[4*maxN], lazy[4*maxN];
	
	void build(int v, int l, int r, string s){
		if(l > r) return;
		if(l == r){
			tree[v] = (prefix[l] - (l > 0 ? prefix[l-1] : 0) + mod) % mod * convert(s[l]) % mod;
			lazy[v] = -1;
			return;
		}
		
		int m = (l+r) >> 1;
		build(v*2+1, l, m, s);
		build(v*2+2, m+1, r, s);
		
		tree[v] = (tree[v*2+1] + tree[v*2+2]) % mod;
		lazy[v] = -1;
	}
	
	void push(int v, int l, int m, int r){
		if(lazy[v] == -1) return;
		
		tree[v*2+1] = (prefix[m] - (l > 0 ? prefix[l-1] : 0) + 2*mod) % mod * lazy[v] % mod;
		lazy[v*2+1] = lazy[v];
		
		tree[v*2+2] = (prefix[r] - prefix[m] + 2*mod) % mod * lazy[v] % mod;
		lazy[v*2+2] = lazy[v];
		
		lazy[v] = -1;
	}
	
	void update(int v, int curL, int curR, int l, int r, ll val){
		if(l > r || curL > curR) return;
		if(curL == l && r == curR){
			tree[v] = (prefix[curR] - (curL > 0 ? prefix[curL-1] : 0) + 2*mod) % mod * val % mod;
			lazy[v] = val;
		} else {
			int curM = (curL+curR) >> 1;
			
			push(v, curL, curM, curR);
			
			update(v*2+1, curL, curM, l, min(r, curM), val);
			update(v*2+2, curM+1, curR, max(l, curM+1), r, val);
			
			tree[v] = (tree[v*2+1] + tree[v*2+2]) % mod;
		}
	}
	
	ll query(int v, int curL, int curR, int l, int r){
		if(l > r || curL > curR) return 0;
		if(l <= curL && curR <= r){
			return tree[v];
		}
		
		int curM = (curL+curR) >> 1;

		push(v, curL, curM, curR);
		
		return (query(v*2+1, curL, curM, l, min(r, curM)) + query(v*2+2, curM+1, curR, max(l, curM+1), r)) % mod;
	}
};

SegTree tree;

int main(){
	ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
//	freopen("JOI2021-Crossing.in","r",stdin);
	
	cin >> n;
	
	ll cur = 1;
	prefix[0] = 1;
	for(int x=1;x<maxN;x++){
		cur *= base;
		cur %= mod;
		prefix[x] = (prefix[x-1] + cur) % mod;
	}
	
	set<string> st;
	vector<string> v;
	
	for(int x=0;x<3;x++){
		string s;
		cin >> s;
		
		if(!st.count(s)){
			st.insert(s);
			v.push_back(s);
		}
	}
	
	for(int x=0;x<v.size();x++){
		for(int y=0;y<x;y++){
			string tmp;
			for(int z=0;z<v[x].length();z++){
				if(v[x][z] == v[y][z]){
					tmp.push_back(v[x][z]);
				} else {
					int bit = (1 << convert(v[x][z]));
					bit |= (1 << convert(v[y][z]));
					
					for(int i=0;i<3;i++){
						if(!(bit&(1<<i))){
							if(i == 0) tmp.push_back('J');
							else if(i == 1) tmp.push_back('O');
							else tmp.push_back('I');
							break;
						}
					}
				}
			}
			
			if(!st.count(tmp)){
				st.insert(tmp);
				v.push_back(tmp);
			}
		}
	}
	
	set<ll> st2;
	for(auto s : st){
		ll val = 0, cur = 1;
		for(int x=0;x<n;x++){
			val += convert(s[x]) * cur % mod;
			val %= mod;
			cur *= base;
			cur %= mod;
		}
		
//		cout << s << "\n";
		st2.insert(val);
	}
	
	int q;
	cin >> q;
	
	string t;
	cin >> t;
	
	tree.build(0, 0, n-1, t);
	
	if(st2.count(tree.query(0, 0, n-1, 0, n-1))){
		cout << "Yes\n";
	} else {
		cout << "No\n";
	}
	
	for(int i=1;i<=q;i++){
		int l, r;
		char c;
		cin >> l >> r >> c;
		
		l--; r--;
		tree.update(0, 0, n-1, l, r, convert(c));
		
		if(st2.count(tree.query(0, 0, n-1, 0, n-1))){
			cout << "Yes\n";
		} else {
			cout << "No\n";
		}
	}
	
    return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:120:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  120 |  for(int x=0;x<v.size();x++){
      |              ~^~~~~~~~~
Main.cpp:123:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  123 |    for(int z=0;z<v[x].length();z++){
      |                ~^~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 2368 KB Output is correct
2 Correct 82 ms 2460 KB Output is correct
3 Correct 88 ms 2436 KB Output is correct
4 Correct 68 ms 2372 KB Output is correct
5 Correct 68 ms 2452 KB Output is correct
6 Correct 79 ms 2372 KB Output is correct
7 Correct 78 ms 2380 KB Output is correct
8 Correct 72 ms 2396 KB Output is correct
9 Correct 74 ms 2368 KB Output is correct
10 Correct 76 ms 2364 KB Output is correct
11 Correct 80 ms 2364 KB Output is correct
12 Correct 72 ms 2432 KB Output is correct
13 Correct 73 ms 2436 KB Output is correct
14 Correct 73 ms 2556 KB Output is correct
15 Correct 78 ms 2448 KB Output is correct
16 Correct 73 ms 2372 KB Output is correct
17 Correct 70 ms 2372 KB Output is correct
18 Correct 85 ms 2416 KB Output is correct

Subtask #2
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 2368 KB Output is correct
2 Correct 82 ms 2460 KB Output is correct
3 Correct 88 ms 2436 KB Output is correct
4 Correct 68 ms 2372 KB Output is correct
5 Correct 68 ms 2452 KB Output is correct
6 Correct 79 ms 2372 KB Output is correct
7 Correct 78 ms 2380 KB Output is correct
8 Correct 72 ms 2396 KB Output is correct
9 Correct 74 ms 2368 KB Output is correct
10 Correct 76 ms 2364 KB Output is correct
11 Correct 80 ms 2364 KB Output is correct
12 Correct 72 ms 2432 KB Output is correct
13 Correct 73 ms 2436 KB Output is correct
14 Correct 73 ms 2556 KB Output is correct
15 Correct 78 ms 2448 KB Output is correct
16 Correct 73 ms 2372 KB Output is correct
17 Correct 70 ms 2372 KB Output is correct
18 Correct 85 ms 2416 KB Output is correct
19 Execution timed out 7053 ms 10640 KB Time limit exceeded
20 Halted 0 ms 0 KB -

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 2368 KB Output is correct
2 Correct 82 ms 2460 KB Output is correct
3 Correct 88 ms 2436 KB Output is correct
4 Correct 68 ms 2372 KB Output is correct
5 Correct 68 ms 2452 KB Output is correct
6 Correct 79 ms 2372 KB Output is correct
7 Correct 78 ms 2380 KB Output is correct
8 Correct 72 ms 2396 KB Output is correct
9 Correct 74 ms 2368 KB Output is correct
10 Correct 76 ms 2364 KB Output is correct
11 Correct 80 ms 2364 KB Output is correct
12 Correct 72 ms 2432 KB Output is correct
13 Correct 73 ms 2436 KB Output is correct
14 Correct 73 ms 2556 KB Output is correct
15 Correct 78 ms 2448 KB Output is correct
16 Correct 73 ms 2372 KB Output is correct
17 Correct 70 ms 2372 KB Output is correct
18 Correct 85 ms 2416 KB Output is correct
19 Correct 81 ms 2348 KB Output is correct
20 Correct 86 ms 2444 KB Output is correct
21 Correct 77 ms 2440 KB Output is correct
22 Correct 65 ms 2364 KB Output is correct
23 Correct 77 ms 2500 KB Output is correct
24 Correct 70 ms 2372 KB Output is correct
25 Correct 82 ms 2460 KB Output is correct
26 Correct 72 ms 2388 KB Output is correct
27 Correct 77 ms 2372 KB Output is correct
28 Correct 71 ms 2332 KB Output is correct
29 Correct 79 ms 2440 KB Output is correct
30 Correct 67 ms 2428 KB Output is correct
31 Correct 77 ms 2416 KB Output is correct
32 Correct 80 ms 2464 KB Output is correct
33 Correct 80 ms 2372 KB Output is correct
34 Correct 70 ms 2404 KB Output is correct
35 Correct 74 ms 2440 KB Output is correct
36 Correct 76 ms 2368 KB Output is correct
37 Correct 76 ms 2460 KB Output is correct
38 Correct 74 ms 2436 KB Output is correct
39 Correct 76 ms 2372 KB Output is correct
40 Correct 83 ms 2420 KB Output is correct
41 Correct 75 ms 2392 KB Output is correct
42 Correct 78 ms 2524 KB Output is correct
43 Correct 79 ms 2376 KB Output is correct
44 Correct 75 ms 2420 KB Output is correct

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 2368 KB Output is correct
2 Correct 82 ms 2460 KB Output is correct
3 Correct 88 ms 2436 KB Output is correct
4 Correct 68 ms 2372 KB Output is correct
5 Correct 68 ms 2452 KB Output is correct
6 Correct 79 ms 2372 KB Output is correct
7 Correct 78 ms 2380 KB Output is correct
8 Correct 72 ms 2396 KB Output is correct
9 Correct 74 ms 2368 KB Output is correct
10 Correct 76 ms 2364 KB Output is correct
11 Correct 80 ms 2364 KB Output is correct
12 Correct 72 ms 2432 KB Output is correct
13 Correct 73 ms 2436 KB Output is correct
14 Correct 73 ms 2556 KB Output is correct
15 Correct 78 ms 2448 KB Output is correct
16 Correct 73 ms 2372 KB Output is correct
17 Correct 70 ms 2372 KB Output is correct
18 Correct 85 ms 2416 KB Output is correct
19 Execution timed out 7053 ms 10640 KB Time limit exceeded
20 Halted 0 ms 0 KB -