oj.uz

Submission #507603

# Submission time Handle Problem Language Result Execution time Memory
507603 2022-01-12T19:56:24 Z nichke Crossing (JOI21_crossing) C++14
26 / 100
 402 ms 21312 KB 
// I may fail a thousand times
// But there is no giving up
// IOI - here I come
#include <bits/stdc++.h>
#define int long long
using namespace std;
const int BASE=3;
const int MOD1=(int)1e9+9;
const int MOD2=(int)1e9+6;
string s;
map<char,int> mp;
int lazy[(int)8e5+5];
int tree[(int)8e5+5][2];
int pref[(int)2e5+5][2];
string calc(string x,string y){
	string ret="";
	int sz=(int)x.length();
	for(int i=0;i<sz;i++){
		if(x[i]==y[i])ret+=x[i];
		else{
			char a=x[i];
			char b=y[i];
			if(a>b)swap(a,b);
			if(a=='I'&&b=='J')ret+='O';
			if(a=='I'&&b=='O')ret+='J';
			if(a=='J'&&b=='O')ret+='I';
		}
	}
	return ret;
}
int mul(int a,int b,int MOD){
	int ret=(a*b)%MOD;
	if(ret<0)ret+=MOD;
	return ret;
}
int add(int a,int b,int MOD){
	int ret=(a+b)%MOD;
	if(ret<0)ret+=MOD;
	return ret;
}
void build(int v,int l,int r){
	if(l==r){
		tree[v][0]=mul(mp[s[l-1]],add(pref[r][0],-pref[l-1][0],MOD1),MOD1);
		tree[v][1]=mul(mp[s[l-1]],add(pref[r][1],-pref[l-1][1],MOD2),MOD2);
		return;
	}
	int m=(l+r)/2;
	build(2*v,l,m);
	build(2*v+1,m+1,r);
	tree[v][0]=add(tree[2*v][0],tree[2*v+1][0],MOD1);
	tree[v][1]=add(tree[2*v][1],tree[2*v+1][1],MOD2);
}
void push(int v,int l,int r){
	if(l>r)return;
	if(lazy[v]!=-1){
		if(l!=r){
			lazy[2*v]=lazy[v];
			lazy[2*v+1]=lazy[v];
		}
		tree[v][0]=mul(lazy[v],add(pref[r][0],-pref[l-1][0],MOD1),MOD1);
		tree[v][1]=mul(lazy[v],add(pref[r][1],-pref[l-1][1],MOD2),MOD2);
		lazy[v]=-1;
	}
}
void upd(int v,int l,int r,int ul,int ur,int t){
	push(v,l,r);
	if(l>r||ul>ur||l>ur||r<ul)return;
	if(l>=ul&&r<=ur){
		lazy[v]=t;
		push(v,l,r);
		return;
	}
	int m=(l+r)/2;
	upd(2*v,l,m,ul,ur,t);
	upd(2*v+1,m+1,r,ul,ur,t);
	tree[v][0]=add(tree[2*v][0],tree[2*v+1][0],MOD1);
	tree[v][1]=add(tree[2*v][1],tree[2*v+1][1],MOD2);
}
signed main(){
  ios_base::sync_with_stdio(0);cin.tie(0);
	int n;cin>>n;
	mp['I']=0;
	mp['J']=1;
	mp['O']=2;
	vector<string> v(3);
	for(int i=0;i<3;i++)cin>>v[i];
	queue<string> q;
	for(int i=0;i<3;i++)q.push(v[i]);
	v.clear();
	map<string,int> vis;
	for(;!q.empty();){
		string x=q.front();q.pop();
		if(vis[x])continue;
		vis[x]=1;
		v.push_back(x);
		for(auto y:v){
			string z=calc(x,y);
			q.push(z);
		}
	}
	int curbase1=1,curbase2=1;
	for(int i=1;i<=n;i++){
		pref[i][0]=add(pref[i-1][0],curbase1,MOD1);
		pref[i][1]=add(pref[i-1][1],curbase2,MOD2);
		curbase1=mul(curbase1,BASE,MOD1);
		curbase2=mul(curbase2,BASE,MOD2);
	}
	vector<int> res0,res1;
	for(string s:v){
		int cur0,cur1;cur0=cur1=0;
		for(int i=0;i<(int)s.length();i++){
			cur0=add(cur0,mul(mp[s[i]],add(pref[i+1][0],-pref[i][0],MOD1),MOD1),MOD1);
			cur1=add(cur1,mul(mp[s[i]],add(pref[i+1][1],-pref[i][1],MOD2),MOD2),MOD2);
		}
		res0.push_back(cur0);
		res1.push_back(cur1);
	}
	int t;cin>>t;
	cin>>s;
	build(1,1,n);
	int flag=0;
	for(int i=0;i<(int)res0.size();i++){
		if(tree[1][0]==res0[i]&&tree[1][1]==res1[i]){
			flag=1;
		}
	}
	flag?cout<<"Yes\n":cout<<"No\n";
	for(;t;t--){
		int l,r;cin>>l>>r;
		char c;cin>>c;
		int x=mp[c];
		upd(1,1,n,l,r,x);
		int flag=0;
		for(int i=0;i<(int)res0.size();i++){
			if(tree[1][0]==res0[i]&&tree[1][1]==res1[i]){
				flag=1;
			}
		}
		flag?cout<<"Yes\n":cout<<"No\n";
	}
  return 0;
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 780 KB Output is correct
2 Correct 101 ms 808 KB Output is correct
3 Correct 86 ms 828 KB Output is correct
4 Correct 70 ms 836 KB Output is correct
5 Correct 71 ms 900 KB Output is correct
6 Correct 73 ms 980 KB Output is correct
7 Correct 74 ms 876 KB Output is correct
8 Correct 72 ms 892 KB Output is correct
9 Correct 74 ms 916 KB Output is correct
10 Correct 73 ms 812 KB Output is correct
11 Correct 73 ms 2404 KB Output is correct
12 Correct 73 ms 2472 KB Output is correct
13 Correct 73 ms 2416 KB Output is correct
14 Correct 82 ms 2384 KB Output is correct
15 Correct 75 ms 2440 KB Output is correct
16 Correct 77 ms 2400 KB Output is correct
17 Correct 74 ms 2400 KB Output is correct
18 Correct 86 ms 2372 KB Output is correct

Subtask #2
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 780 KB Output is correct
2 Correct 101 ms 808 KB Output is correct
3 Correct 86 ms 828 KB Output is correct
4 Correct 70 ms 836 KB Output is correct
5 Correct 71 ms 900 KB Output is correct
6 Correct 73 ms 980 KB Output is correct
7 Correct 74 ms 876 KB Output is correct
8 Correct 72 ms 892 KB Output is correct
9 Correct 74 ms 916 KB Output is correct
10 Correct 73 ms 812 KB Output is correct
11 Correct 73 ms 2404 KB Output is correct
12 Correct 73 ms 2472 KB Output is correct
13 Correct 73 ms 2416 KB Output is correct
14 Correct 82 ms 2384 KB Output is correct
15 Correct 75 ms 2440 KB Output is correct
16 Correct 77 ms 2400 KB Output is correct
17 Correct 74 ms 2400 KB Output is correct
18 Correct 86 ms 2372 KB Output is correct
19 Correct 402 ms 21236 KB Output is correct
20 Correct 289 ms 17992 KB Output is correct
21 Correct 197 ms 20844 KB Output is correct
22 Correct 197 ms 20212 KB Output is correct
23 Correct 114 ms 4292 KB Output is correct
24 Correct 118 ms 4280 KB Output is correct
25 Correct 197 ms 21312 KB Output is correct
26 Correct 217 ms 21240 KB Output is correct
27 Correct 259 ms 21300 KB Output is correct
28 Correct 250 ms 21264 KB Output is correct
29 Correct 217 ms 21120 KB Output is correct
30 Correct 126 ms 4288 KB Output is correct
31 Correct 232 ms 21232 KB Output is correct
32 Correct 218 ms 20696 KB Output is correct
33 Correct 123 ms 4216 KB Output is correct
34 Correct 248 ms 21312 KB Output is correct
35 Correct 170 ms 19672 KB Output is correct
36 Correct 125 ms 4372 KB Output is correct
37 Correct 115 ms 4272 KB Output is correct
38 Correct 261 ms 17900 KB Output is correct
39 Incorrect 138 ms 17440 KB Output isn't correct
40 Halted 0 ms 0 KB -

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 780 KB Output is correct
2 Correct 101 ms 808 KB Output is correct
3 Correct 86 ms 828 KB Output is correct
4 Correct 70 ms 836 KB Output is correct
5 Correct 71 ms 900 KB Output is correct
6 Correct 73 ms 980 KB Output is correct
7 Correct 74 ms 876 KB Output is correct
8 Correct 72 ms 892 KB Output is correct
9 Correct 74 ms 916 KB Output is correct
10 Correct 73 ms 812 KB Output is correct
11 Correct 73 ms 2404 KB Output is correct
12 Correct 73 ms 2472 KB Output is correct
13 Correct 73 ms 2416 KB Output is correct
14 Correct 82 ms 2384 KB Output is correct
15 Correct 75 ms 2440 KB Output is correct
16 Correct 77 ms 2400 KB Output is correct
17 Correct 74 ms 2400 KB Output is correct
18 Correct 86 ms 2372 KB Output is correct
19 Correct 85 ms 2372 KB Output is correct
20 Correct 91 ms 2296 KB Output is correct
21 Correct 81 ms 2372 KB Output is correct
22 Correct 69 ms 2244 KB Output is correct
23 Correct 72 ms 2368 KB Output is correct
24 Correct 70 ms 2372 KB Output is correct
25 Correct 73 ms 2356 KB Output is correct
26 Correct 71 ms 2360 KB Output is correct
27 Correct 73 ms 2400 KB Output is correct
28 Correct 65 ms 2196 KB Output is correct
29 Correct 77 ms 2352 KB Output is correct
30 Correct 74 ms 2180 KB Output is correct
31 Correct 78 ms 2404 KB Output is correct
32 Correct 77 ms 2380 KB Output is correct
33 Correct 80 ms 2372 KB Output is correct
34 Correct 67 ms 2244 KB Output is correct
35 Correct 79 ms 2496 KB Output is correct
36 Correct 75 ms 2384 KB Output is correct
37 Correct 81 ms 2456 KB Output is correct
38 Correct 84 ms 2380 KB Output is correct
39 Correct 78 ms 2356 KB Output is correct
40 Correct 79 ms 2384 KB Output is correct
41 Correct 73 ms 2412 KB Output is correct
42 Correct 80 ms 2384 KB Output is correct
43 Correct 77 ms 2432 KB Output is correct
44 Correct 78 ms 2356 KB Output is correct

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 780 KB Output is correct
2 Correct 101 ms 808 KB Output is correct
3 Correct 86 ms 828 KB Output is correct
4 Correct 70 ms 836 KB Output is correct
5 Correct 71 ms 900 KB Output is correct
6 Correct 73 ms 980 KB Output is correct
7 Correct 74 ms 876 KB Output is correct
8 Correct 72 ms 892 KB Output is correct
9 Correct 74 ms 916 KB Output is correct
10 Correct 73 ms 812 KB Output is correct
11 Correct 73 ms 2404 KB Output is correct
12 Correct 73 ms 2472 KB Output is correct
13 Correct 73 ms 2416 KB Output is correct
14 Correct 82 ms 2384 KB Output is correct
15 Correct 75 ms 2440 KB Output is correct
16 Correct 77 ms 2400 KB Output is correct
17 Correct 74 ms 2400 KB Output is correct
18 Correct 86 ms 2372 KB Output is correct
19 Correct 402 ms 21236 KB Output is correct
20 Correct 289 ms 17992 KB Output is correct
21 Correct 197 ms 20844 KB Output is correct
22 Correct 197 ms 20212 KB Output is correct
23 Correct 114 ms 4292 KB Output is correct
24 Correct 118 ms 4280 KB Output is correct
25 Correct 197 ms 21312 KB Output is correct
26 Correct 217 ms 21240 KB Output is correct
27 Correct 259 ms 21300 KB Output is correct
28 Correct 250 ms 21264 KB Output is correct
29 Correct 217 ms 21120 KB Output is correct
30 Correct 126 ms 4288 KB Output is correct
31 Correct 232 ms 21232 KB Output is correct
32 Correct 218 ms 20696 KB Output is correct
33 Correct 123 ms 4216 KB Output is correct
34 Correct 248 ms 21312 KB Output is correct
35 Correct 170 ms 19672 KB Output is correct
36 Correct 125 ms 4372 KB Output is correct
37 Correct 115 ms 4272 KB Output is correct
38 Correct 261 ms 17900 KB Output is correct
39 Incorrect 138 ms 17440 KB Output isn't correct
40 Halted 0 ms 0 KB -