oj.uz

Submission #425419

# Submission time Handle Problem Language Result Execution time Memory
425419 2021-06-13T02:52:08 Z CSQ31 Crossing (JOI21_crossing) C++14
26 / 100
 445 ms 63056 KB 
#pragma GCC optimize("Ofast") 
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define sz(a) (int)(a.size())
#define all(a) a.begin(),a.end()
#define lb lower_bound
#define ub upper_bound
#define owo ios_base::sync_with_stdio(0);cin.tie(0);
#define INF (ll)(1e18)
#define debug(...) fprintf(stderr, __VA_ARGS__),fflush(stderr)
#define time__(d) for(long blockTime = 0; (blockTime == 0 ? (blockTime=clock()) != 0 : false);\
debug("%s time : %.4fs\n", d, (double)(clock() - blockTime) / CLOCKS_PER_SEC))
typedef long long int ll;
typedef long double ld;
typedef pair<ll,ll> PII;
typedef pair<int,int> pii;
typedef vector<vector<int>> vii;
typedef vector<vector<ll>> VII;
ll gcd(ll a,ll b){if(!b)return a;else return gcd(b,a%b);}
const int MAXN = 2e5+5;
string make(string a,string b){
	int n = sz(a);
	string res(n,'a');
	for(int i=0;i<n;i++){
		if(a[i] == b[i])res[i] = a[i];
		else{
			if((a[i] == 'I' && b[i] == 'O') || (a[i] == 'O' && b[i] == 'I'))res[i] = 'J';
			if((a[i] == 'J' && b[i] == 'I') || (a[i] == 'I' && b[i] == 'J'))res[i] = 'O';
			if((a[i] == 'O' && b[i] == 'J') || (a[i] == 'J' && b[i] == 'O'))res[i] = 'I';
			
		}
	}
	return res;
}
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
ll MOD[2],pw[2][MAXN];
ll base;
PII hh(string s){
	PII res = {0,0};
	for(int i=0;i<sz(s);i++){
		res.fi+=((s[i]-'A')*pw[0][i])%MOD[0];
		res.se+=((s[i]-'A')*pw[1][i])%MOD[1];
		if(res.fi>=MOD[0])res.fi-=MOD[0];
		if(res.se>=MOD[1])res.se-=MOD[1];
	}
	return res;
}
ll binpow(ll n,ll k,ll mod){
	ll res = 1;
	while(k){
		if(k&1)res*=n;
		n*=n;
		k/=2;
		res%=mod;
		n%=mod;
	}
	return res;
}
vector<vector<PII>> pref(4,vector<PII>(MAXN));
vector<PII>t(4*MAXN);
vector<int>lazy(MAXN,-1);
void pushdown(int v,int l,int r){
	int tm = (l+r)/2;
	if(lazy[v] != -1){
		int c = lazy[v];
		lazy[2*v] = lazy[2*v+1] = c;
		t[2*v].fi = (pref[c][tm].fi - pref[c][l-1].fi+MOD[0])%MOD[0];
		t[2*v].se = (pref[c][tm].se - pref[c][l-1].se+MOD[1])%MOD[1];
		t[2*v+1].fi = (pref[c][r].fi - pref[c][tm].fi+MOD[0])%MOD[0];
		t[2*v+1].se = (pref[c][r].se - pref[c][tm].se+MOD[1])%MOD[1];
		lazy[v] = -1;
	}
}
void upd(int v,int l,int r,int tl,int tr,int c){
	if(l > r)return;
	if(l == tl && r == tr){
		lazy[v] = c;
		t[v].fi = (pref[c][r].fi - pref[c][l-1].fi+MOD[0])%MOD[0];
		t[v].se = (pref[c][r].se - pref[c][l-1].se+MOD[1])%MOD[1];	
		return;	
	}
	pushdown(v,tl,tr);
	int tm = (tl+tr)/2;
	upd(2*v,l,min(r,tm),tl,tm,c);
	upd(2*v+1,max(tm+1,l),r,tm+1,tr,c);
	t[v].fi = (t[2*v].fi+t[2*v+1].fi)%MOD[0];
	t[v].se = (t[2*v].se+t[2*v+1].se)%MOD[1];
}
PII query(int v,int l,int r,int tl,int tr){
	if(l>r)return {0,0};
	if(l==tl && r==tr){
		return t[v];
	}
	int tm =(tl+tr);
	pushdown(v,tl,tr);
	PII a = query(2*v,l,min(r,tm),tl,tm);
	PII b = query(2*v+1,max(tm+1,l),r,tm+1,tr);
	return {(a.fi+b.fi)%MOD[0],(a.se+b.se)%MOD[1]};
}


int main()
{
	owo
	int n,q;
	cin>>n;
	MOD[0] = 1e9+7;
	MOD[1] = uniform_int_distribution<ll>(1e9+7,1e10)(rng);
	base = uniform_int_distribution<ll>(1e6,1e9+6)(rng);
	pw[0][0] = pw[1][0] = 1;
	for(int i=0;i<2;i++)
		for(int j=1;j<n;j++)pw[i][j] = pw[i][j-1] * base %MOD[i];
		
		
	string a,b,c,t;
	cin>>a>>b>>c>>q>>t;
	vector<string>cur = {a,b,c};
	set<PII>seen;
	seen.insert(hh(a));
	seen.insert(hh(b));
	seen.insert(hh(c));
	int idx=0;
	while(true){
		vector<string>tmp;
		bool ok =0;
		for(int i=idx+1;i<sz(cur);i++){
			string res = make(cur[idx],cur[i]);
			PII r = hh(res);
			if(!seen.count(r)){
				ok = 1;
			   seen.insert(r);
			   cur.pb(res);
		   }
		}
		idx++;
		if(!ok)break;
	}
	string J = "JOI";
	for(int i=0;i<3;i++){
		for(int j=1;j<=n;j++){
			pref[i][j].fi+=((J[i]-'A')*pw[0][j-1])%MOD[0];
			pref[i][j].se+=((J[i]-'A')*pw[1][j-1])%MOD[1];
			pref[i][j].fi+=pref[i][j-1].fi;
			pref[i][j].se+=pref[i][j-1].se;
			if(pref[i][j].fi>=MOD[0])pref[i][j].fi-=MOD[0];
			if(pref[i][j].se>=MOD[1])pref[i][j].se-=MOD[1];
			
		}
	}
	for(int i=1;i<=n;i++){
		pref[3][i].fi+=pref[3][i-1].fi;
		pref[3][i].se+=pref[3][i-1].se;
		pref[3][i].fi+=(t[i-1]-'A')*pw[0][i-1]%MOD[0];
		pref[3][i].se+=(t[i-1]-'A')*pw[1][i-1]%MOD[1];
		pref[3][i].fi%=MOD[0];
		pref[3][i].se%=MOD[1];
	}
	upd(1,1,n,1,n,3);
	if(seen.count(query(1,1,n,1,n)))cout<<"Yes"<<'\n';
	else cout<<"No"<<'\n';
	while(q--){
		int l,r;
		char c;
		cin>>l>>r>>c;
		if(c=='J')upd(1,l,r,1,n,0);
		if(c=='O')upd(1,l,r,1,n,1);
		if(c=='I')upd(1,l,r,1,n,2);
		PII nw = query(1,1,n,1,n);
		if(seen.count(nw))cout<<"Yes"<<'\n';
		else cout<<"No"<<'\n';
		//divide by base^l :waturr: need inverse
	}
	//cout<<sz(seen)<<'\n';
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 116 ms 26632 KB Output is correct
2 Correct 136 ms 26712 KB Output is correct
3 Correct 135 ms 26884 KB Output is correct
4 Correct 113 ms 26768 KB Output is correct
5 Correct 115 ms 26644 KB Output is correct
6 Correct 114 ms 26708 KB Output is correct
7 Correct 112 ms 26748 KB Output is correct
8 Correct 117 ms 26836 KB Output is correct
9 Correct 115 ms 26756 KB Output is correct
10 Correct 117 ms 26728 KB Output is correct
11 Correct 118 ms 26708 KB Output is correct
12 Correct 116 ms 26740 KB Output is correct
13 Correct 117 ms 26780 KB Output is correct
14 Correct 114 ms 26684 KB Output is correct
15 Correct 121 ms 26760 KB Output is correct
16 Correct 131 ms 26696 KB Output is correct
17 Correct 115 ms 26708 KB Output is correct
18 Correct 131 ms 26744 KB Output is correct

Subtask #2
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 116 ms 26632 KB Output is correct
2 Correct 136 ms 26712 KB Output is correct
3 Correct 135 ms 26884 KB Output is correct
4 Correct 113 ms 26768 KB Output is correct
5 Correct 115 ms 26644 KB Output is correct
6 Correct 114 ms 26708 KB Output is correct
7 Correct 112 ms 26748 KB Output is correct
8 Correct 117 ms 26836 KB Output is correct
9 Correct 115 ms 26756 KB Output is correct
10 Correct 117 ms 26728 KB Output is correct
11 Correct 118 ms 26708 KB Output is correct
12 Correct 116 ms 26740 KB Output is correct
13 Correct 117 ms 26780 KB Output is correct
14 Correct 114 ms 26684 KB Output is correct
15 Correct 121 ms 26760 KB Output is correct
16 Correct 131 ms 26696 KB Output is correct
17 Correct 115 ms 26708 KB Output is correct
18 Correct 131 ms 26744 KB Output is correct
19 Correct 69 ms 32168 KB Output is correct
20 Correct 445 ms 31980 KB Output is correct
21 Runtime error 83 ms 63056 KB Execution killed with signal 11
22 Halted 0 ms 0 KB -

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 116 ms 26632 KB Output is correct
2 Correct 136 ms 26712 KB Output is correct
3 Correct 135 ms 26884 KB Output is correct
4 Correct 113 ms 26768 KB Output is correct
5 Correct 115 ms 26644 KB Output is correct
6 Correct 114 ms 26708 KB Output is correct
7 Correct 112 ms 26748 KB Output is correct
8 Correct 117 ms 26836 KB Output is correct
9 Correct 115 ms 26756 KB Output is correct
10 Correct 117 ms 26728 KB Output is correct
11 Correct 118 ms 26708 KB Output is correct
12 Correct 116 ms 26740 KB Output is correct
13 Correct 117 ms 26780 KB Output is correct
14 Correct 114 ms 26684 KB Output is correct
15 Correct 121 ms 26760 KB Output is correct
16 Correct 131 ms 26696 KB Output is correct
17 Correct 115 ms 26708 KB Output is correct
18 Correct 131 ms 26744 KB Output is correct
19 Correct 149 ms 26712 KB Output is correct
20 Correct 137 ms 26712 KB Output is correct
21 Correct 119 ms 26744 KB Output is correct
22 Correct 117 ms 26716 KB Output is correct
23 Correct 117 ms 26748 KB Output is correct
24 Correct 109 ms 26760 KB Output is correct
25 Correct 122 ms 26788 KB Output is correct
26 Correct 110 ms 26656 KB Output is correct
27 Correct 135 ms 26720 KB Output is correct
28 Correct 103 ms 26648 KB Output is correct
29 Correct 122 ms 26688 KB Output is correct
30 Correct 119 ms 26628 KB Output is correct
31 Correct 124 ms 26752 KB Output is correct
32 Correct 113 ms 26756 KB Output is correct
33 Correct 120 ms 26776 KB Output is correct
34 Correct 108 ms 26624 KB Output is correct
35 Correct 115 ms 26720 KB Output is correct
36 Correct 118 ms 26816 KB Output is correct
37 Correct 116 ms 26688 KB Output is correct
38 Correct 117 ms 26760 KB Output is correct
39 Correct 123 ms 26692 KB Output is correct
40 Correct 132 ms 26660 KB Output is correct
41 Correct 116 ms 26764 KB Output is correct
42 Correct 117 ms 26756 KB Output is correct
43 Correct 116 ms 26740 KB Output is correct
44 Correct 129 ms 26872 KB Output is correct

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 116 ms 26632 KB Output is correct
2 Correct 136 ms 26712 KB Output is correct
3 Correct 135 ms 26884 KB Output is correct
4 Correct 113 ms 26768 KB Output is correct
5 Correct 115 ms 26644 KB Output is correct
6 Correct 114 ms 26708 KB Output is correct
7 Correct 112 ms 26748 KB Output is correct
8 Correct 117 ms 26836 KB Output is correct
9 Correct 115 ms 26756 KB Output is correct
10 Correct 117 ms 26728 KB Output is correct
11 Correct 118 ms 26708 KB Output is correct
12 Correct 116 ms 26740 KB Output is correct
13 Correct 117 ms 26780 KB Output is correct
14 Correct 114 ms 26684 KB Output is correct
15 Correct 121 ms 26760 KB Output is correct
16 Correct 131 ms 26696 KB Output is correct
17 Correct 115 ms 26708 KB Output is correct
18 Correct 131 ms 26744 KB Output is correct
19 Correct 69 ms 32168 KB Output is correct
20 Correct 445 ms 31980 KB Output is correct
21 Runtime error 83 ms 63056 KB Execution killed with signal 11
22 Halted 0 ms 0 KB -