oj.uz

Submission #425418

# Submission time Handle Problem Language Result Execution time Memory
425418 2021-06-13T02:51:29 Z CSQ31 Crossing (JOI21_crossing) C++14
26 / 100
 562 ms 63348 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()
{
	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 472 ms 26632 KB Output is correct
2 Correct 514 ms 26692 KB Output is correct
3 Correct 519 ms 26644 KB Output is correct
4 Correct 479 ms 26628 KB Output is correct
5 Correct 482 ms 26756 KB Output is correct
6 Correct 460 ms 26680 KB Output is correct
7 Correct 488 ms 26768 KB Output is correct
8 Correct 488 ms 26644 KB Output is correct
9 Correct 529 ms 26728 KB Output is correct
10 Correct 534 ms 26760 KB Output is correct
11 Correct 525 ms 26848 KB Output is correct
12 Correct 487 ms 26760 KB Output is correct
13 Correct 498 ms 26980 KB Output is correct
14 Correct 499 ms 26684 KB Output is correct
15 Correct 542 ms 26696 KB Output is correct
16 Correct 483 ms 26648 KB Output is correct
17 Correct 497 ms 26684 KB Output is correct
18 Correct 514 ms 26888 KB Output is correct

Subtask #2
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 472 ms 26632 KB Output is correct
2 Correct 514 ms 26692 KB Output is correct
3 Correct 519 ms 26644 KB Output is correct
4 Correct 479 ms 26628 KB Output is correct
5 Correct 482 ms 26756 KB Output is correct
6 Correct 460 ms 26680 KB Output is correct
7 Correct 488 ms 26768 KB Output is correct
8 Correct 488 ms 26644 KB Output is correct
9 Correct 529 ms 26728 KB Output is correct
10 Correct 534 ms 26760 KB Output is correct
11 Correct 525 ms 26848 KB Output is correct
12 Correct 487 ms 26760 KB Output is correct
13 Correct 498 ms 26980 KB Output is correct
14 Correct 499 ms 26684 KB Output is correct
15 Correct 542 ms 26696 KB Output is correct
16 Correct 483 ms 26648 KB Output is correct
17 Correct 497 ms 26684 KB Output is correct
18 Correct 514 ms 26888 KB Output is correct
19 Correct 92 ms 32028 KB Output is correct
20 Runtime error 136 ms 63348 KB Execution killed with signal 11
21 Halted 0 ms 0 KB -

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 472 ms 26632 KB Output is correct
2 Correct 514 ms 26692 KB Output is correct
3 Correct 519 ms 26644 KB Output is correct
4 Correct 479 ms 26628 KB Output is correct
5 Correct 482 ms 26756 KB Output is correct
6 Correct 460 ms 26680 KB Output is correct
7 Correct 488 ms 26768 KB Output is correct
8 Correct 488 ms 26644 KB Output is correct
9 Correct 529 ms 26728 KB Output is correct
10 Correct 534 ms 26760 KB Output is correct
11 Correct 525 ms 26848 KB Output is correct
12 Correct 487 ms 26760 KB Output is correct
13 Correct 498 ms 26980 KB Output is correct
14 Correct 499 ms 26684 KB Output is correct
15 Correct 542 ms 26696 KB Output is correct
16 Correct 483 ms 26648 KB Output is correct
17 Correct 497 ms 26684 KB Output is correct
18 Correct 514 ms 26888 KB Output is correct
19 Correct 485 ms 26740 KB Output is correct
20 Correct 535 ms 26844 KB Output is correct
21 Correct 507 ms 26732 KB Output is correct
22 Correct 471 ms 26632 KB Output is correct
23 Correct 490 ms 26692 KB Output is correct
24 Correct 489 ms 26716 KB Output is correct
25 Correct 499 ms 26756 KB Output is correct
26 Correct 494 ms 26656 KB Output is correct
27 Correct 487 ms 26664 KB Output is correct
28 Correct 491 ms 26700 KB Output is correct
29 Correct 517 ms 26828 KB Output is correct
30 Correct 449 ms 26724 KB Output is correct
31 Correct 511 ms 26756 KB Output is correct
32 Correct 504 ms 27000 KB Output is correct
33 Correct 495 ms 26648 KB Output is correct
34 Correct 471 ms 26808 KB Output is correct
35 Correct 516 ms 26756 KB Output is correct
36 Correct 562 ms 26768 KB Output is correct
37 Correct 494 ms 26688 KB Output is correct
38 Correct 503 ms 26856 KB Output is correct
39 Correct 498 ms 26760 KB Output is correct
40 Correct 509 ms 26664 KB Output is correct
41 Correct 531 ms 26724 KB Output is correct
42 Correct 529 ms 26760 KB Output is correct
43 Correct 499 ms 26672 KB Output is correct
44 Correct 510 ms 26760 KB Output is correct

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 472 ms 26632 KB Output is correct
2 Correct 514 ms 26692 KB Output is correct
3 Correct 519 ms 26644 KB Output is correct
4 Correct 479 ms 26628 KB Output is correct
5 Correct 482 ms 26756 KB Output is correct
6 Correct 460 ms 26680 KB Output is correct
7 Correct 488 ms 26768 KB Output is correct
8 Correct 488 ms 26644 KB Output is correct
9 Correct 529 ms 26728 KB Output is correct
10 Correct 534 ms 26760 KB Output is correct
11 Correct 525 ms 26848 KB Output is correct
12 Correct 487 ms 26760 KB Output is correct
13 Correct 498 ms 26980 KB Output is correct
14 Correct 499 ms 26684 KB Output is correct
15 Correct 542 ms 26696 KB Output is correct
16 Correct 483 ms 26648 KB Output is correct
17 Correct 497 ms 26684 KB Output is correct
18 Correct 514 ms 26888 KB Output is correct
19 Correct 92 ms 32028 KB Output is correct
20 Runtime error 136 ms 63348 KB Execution killed with signal 11
21 Halted 0 ms 0 KB -