oj.uz

Submission #507609

# Submission time Handle Problem Language Result Execution time Memory
507609 2022-01-12T20:02:42 Z nichke Crossing (JOI21_crossing) C++14
26 / 100
 350 ms 17668 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 BASE1=271;
const int BASE2=487;
const int MOD1=10000223;
const int MOD2=62528561;
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,BASE1,MOD1);
		curbase2=mul(curbase2,BASE2,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 94 ms 828 KB Output is correct
2 Correct 87 ms 904 KB Output is correct
3 Correct 86 ms 888 KB Output is correct
4 Correct 68 ms 908 KB Output is correct
5 Correct 73 ms 828 KB Output is correct
6 Correct 73 ms 812 KB Output is correct
7 Correct 68 ms 836 KB Output is correct
8 Correct 72 ms 836 KB Output is correct
9 Correct 73 ms 832 KB Output is correct
10 Correct 76 ms 892 KB Output is correct
11 Correct 76 ms 928 KB Output is correct
12 Correct 72 ms 836 KB Output is correct
13 Correct 77 ms 960 KB Output is correct
14 Correct 72 ms 876 KB Output is correct
15 Correct 100 ms 856 KB Output is correct
16 Correct 92 ms 852 KB Output is correct
17 Correct 71 ms 936 KB Output is correct
18 Correct 85 ms 836 KB Output is correct

Subtask #2
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 94 ms 828 KB Output is correct
2 Correct 87 ms 904 KB Output is correct
3 Correct 86 ms 888 KB Output is correct
4 Correct 68 ms 908 KB Output is correct
5 Correct 73 ms 828 KB Output is correct
6 Correct 73 ms 812 KB Output is correct
7 Correct 68 ms 836 KB Output is correct
8 Correct 72 ms 836 KB Output is correct
9 Correct 73 ms 832 KB Output is correct
10 Correct 76 ms 892 KB Output is correct
11 Correct 76 ms 928 KB Output is correct
12 Correct 72 ms 836 KB Output is correct
13 Correct 77 ms 960 KB Output is correct
14 Correct 72 ms 876 KB Output is correct
15 Correct 100 ms 856 KB Output is correct
16 Correct 92 ms 852 KB Output is correct
17 Correct 71 ms 936 KB Output is correct
18 Correct 85 ms 836 KB Output is correct
19 Correct 350 ms 17664 KB Output is correct
20 Correct 301 ms 14392 KB Output is correct
21 Correct 181 ms 17336 KB Output is correct
22 Correct 222 ms 16924 KB Output is correct
23 Correct 115 ms 1956 KB Output is correct
24 Correct 120 ms 1916 KB Output is correct
25 Correct 215 ms 17640 KB Output is correct
26 Correct 210 ms 17668 KB Output is correct
27 Correct 227 ms 17588 KB Output is correct
28 Correct 274 ms 17636 KB Output is correct
29 Correct 209 ms 17520 KB Output is correct
30 Correct 139 ms 1928 KB Output is correct
31 Correct 256 ms 17636 KB Output is correct
32 Correct 211 ms 17256 KB Output is correct
33 Correct 121 ms 1948 KB Output is correct
34 Correct 273 ms 17608 KB Output is correct
35 Correct 168 ms 16500 KB Output is correct
36 Correct 118 ms 1940 KB Output is correct
37 Correct 116 ms 1900 KB Output is correct
38 Correct 257 ms 14412 KB Output is correct
39 Incorrect 145 ms 13580 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 94 ms 828 KB Output is correct
2 Correct 87 ms 904 KB Output is correct
3 Correct 86 ms 888 KB Output is correct
4 Correct 68 ms 908 KB Output is correct
5 Correct 73 ms 828 KB Output is correct
6 Correct 73 ms 812 KB Output is correct
7 Correct 68 ms 836 KB Output is correct
8 Correct 72 ms 836 KB Output is correct
9 Correct 73 ms 832 KB Output is correct
10 Correct 76 ms 892 KB Output is correct
11 Correct 76 ms 928 KB Output is correct
12 Correct 72 ms 836 KB Output is correct
13 Correct 77 ms 960 KB Output is correct
14 Correct 72 ms 876 KB Output is correct
15 Correct 100 ms 856 KB Output is correct
16 Correct 92 ms 852 KB Output is correct
17 Correct 71 ms 936 KB Output is correct
18 Correct 85 ms 836 KB Output is correct
19 Correct 89 ms 900 KB Output is correct
20 Correct 90 ms 940 KB Output is correct
21 Correct 71 ms 856 KB Output is correct
22 Correct 65 ms 812 KB Output is correct
23 Correct 80 ms 952 KB Output is correct
24 Correct 76 ms 856 KB Output is correct
25 Correct 76 ms 832 KB Output is correct
26 Correct 67 ms 848 KB Output is correct
27 Correct 83 ms 836 KB Output is correct
28 Correct 81 ms 888 KB Output is correct
29 Correct 74 ms 916 KB Output is correct
30 Correct 63 ms 884 KB Output is correct
31 Correct 80 ms 816 KB Output is correct
32 Correct 78 ms 844 KB Output is correct
33 Correct 76 ms 844 KB Output is correct
34 Correct 67 ms 824 KB Output is correct
35 Correct 76 ms 896 KB Output is correct
36 Correct 86 ms 940 KB Output is correct
37 Correct 81 ms 924 KB Output is correct
38 Correct 81 ms 872 KB Output is correct
39 Correct 75 ms 912 KB Output is correct
40 Correct 78 ms 896 KB Output is correct
41 Correct 74 ms 868 KB Output is correct
42 Correct 81 ms 912 KB Output is correct
43 Correct 80 ms 928 KB Output is correct
44 Correct 77 ms 856 KB Output is correct

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 94 ms 828 KB Output is correct
2 Correct 87 ms 904 KB Output is correct
3 Correct 86 ms 888 KB Output is correct
4 Correct 68 ms 908 KB Output is correct
5 Correct 73 ms 828 KB Output is correct
6 Correct 73 ms 812 KB Output is correct
7 Correct 68 ms 836 KB Output is correct
8 Correct 72 ms 836 KB Output is correct
9 Correct 73 ms 832 KB Output is correct
10 Correct 76 ms 892 KB Output is correct
11 Correct 76 ms 928 KB Output is correct
12 Correct 72 ms 836 KB Output is correct
13 Correct 77 ms 960 KB Output is correct
14 Correct 72 ms 876 KB Output is correct
15 Correct 100 ms 856 KB Output is correct
16 Correct 92 ms 852 KB Output is correct
17 Correct 71 ms 936 KB Output is correct
18 Correct 85 ms 836 KB Output is correct
19 Correct 350 ms 17664 KB Output is correct
20 Correct 301 ms 14392 KB Output is correct
21 Correct 181 ms 17336 KB Output is correct
22 Correct 222 ms 16924 KB Output is correct
23 Correct 115 ms 1956 KB Output is correct
24 Correct 120 ms 1916 KB Output is correct
25 Correct 215 ms 17640 KB Output is correct
26 Correct 210 ms 17668 KB Output is correct
27 Correct 227 ms 17588 KB Output is correct
28 Correct 274 ms 17636 KB Output is correct
29 Correct 209 ms 17520 KB Output is correct
30 Correct 139 ms 1928 KB Output is correct
31 Correct 256 ms 17636 KB Output is correct
32 Correct 211 ms 17256 KB Output is correct
33 Correct 121 ms 1948 KB Output is correct
34 Correct 273 ms 17608 KB Output is correct
35 Correct 168 ms 16500 KB Output is correct
36 Correct 118 ms 1940 KB Output is correct
37 Correct 116 ms 1900 KB Output is correct
38 Correct 257 ms 14412 KB Output is correct
39 Incorrect 145 ms 13580 KB Output isn't correct
40 Halted 0 ms 0 KB -