oj.uz

Submission #507610

# Submission time Handle Problem Language Result Execution time Memory
507610 2022-01-12T20:05:16 Z nichke Crossing (JOI21_crossing) C++14
26 / 100
 341 ms 17836 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=2329923;
const int BASE2=54959459;
const int MOD1=(int)1e9+7;
const int MOD2=(int)1e9+7;
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 73 ms 780 KB Output is correct
2 Correct 83 ms 816 KB Output is correct
3 Correct 86 ms 832 KB Output is correct
4 Correct 81 ms 908 KB Output is correct
5 Correct 69 ms 852 KB Output is correct
6 Correct 68 ms 836 KB Output is correct
7 Correct 69 ms 832 KB Output is correct
8 Correct 73 ms 868 KB Output is correct
9 Correct 98 ms 952 KB Output is correct
10 Correct 74 ms 820 KB Output is correct
11 Correct 72 ms 828 KB Output is correct
12 Correct 71 ms 920 KB Output is correct
13 Correct 73 ms 836 KB Output is correct
14 Correct 78 ms 904 KB Output is correct
15 Correct 73 ms 820 KB Output is correct
16 Correct 72 ms 836 KB Output is correct
17 Correct 77 ms 856 KB Output is correct
18 Correct 82 ms 936 KB Output is correct

Subtask #2
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 780 KB Output is correct
2 Correct 83 ms 816 KB Output is correct
3 Correct 86 ms 832 KB Output is correct
4 Correct 81 ms 908 KB Output is correct
5 Correct 69 ms 852 KB Output is correct
6 Correct 68 ms 836 KB Output is correct
7 Correct 69 ms 832 KB Output is correct
8 Correct 73 ms 868 KB Output is correct
9 Correct 98 ms 952 KB Output is correct
10 Correct 74 ms 820 KB Output is correct
11 Correct 72 ms 828 KB Output is correct
12 Correct 71 ms 920 KB Output is correct
13 Correct 73 ms 836 KB Output is correct
14 Correct 78 ms 904 KB Output is correct
15 Correct 73 ms 820 KB Output is correct
16 Correct 72 ms 836 KB Output is correct
17 Correct 77 ms 856 KB Output is correct
18 Correct 82 ms 936 KB Output is correct
19 Correct 341 ms 17604 KB Output is correct
20 Correct 305 ms 14356 KB Output is correct
21 Correct 192 ms 17392 KB Output is correct
22 Correct 189 ms 16952 KB Output is correct
23 Correct 110 ms 1968 KB Output is correct
24 Correct 112 ms 1904 KB Output is correct
25 Correct 201 ms 17836 KB Output is correct
26 Correct 209 ms 17556 KB Output is correct
27 Correct 212 ms 17664 KB Output is correct
28 Correct 250 ms 17740 KB Output is correct
29 Correct 205 ms 17520 KB Output is correct
30 Correct 124 ms 1964 KB Output is correct
31 Correct 213 ms 17736 KB Output is correct
32 Correct 218 ms 17232 KB Output is correct
33 Correct 116 ms 1924 KB Output is correct
34 Correct 242 ms 17624 KB Output is correct
35 Correct 166 ms 16448 KB Output is correct
36 Correct 116 ms 1860 KB Output is correct
37 Correct 111 ms 1956 KB Output is correct
38 Correct 252 ms 14548 KB Output is correct
39 Incorrect 128 ms 13588 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 73 ms 780 KB Output is correct
2 Correct 83 ms 816 KB Output is correct
3 Correct 86 ms 832 KB Output is correct
4 Correct 81 ms 908 KB Output is correct
5 Correct 69 ms 852 KB Output is correct
6 Correct 68 ms 836 KB Output is correct
7 Correct 69 ms 832 KB Output is correct
8 Correct 73 ms 868 KB Output is correct
9 Correct 98 ms 952 KB Output is correct
10 Correct 74 ms 820 KB Output is correct
11 Correct 72 ms 828 KB Output is correct
12 Correct 71 ms 920 KB Output is correct
13 Correct 73 ms 836 KB Output is correct
14 Correct 78 ms 904 KB Output is correct
15 Correct 73 ms 820 KB Output is correct
16 Correct 72 ms 836 KB Output is correct
17 Correct 77 ms 856 KB Output is correct
18 Correct 82 ms 936 KB Output is correct
19 Correct 80 ms 804 KB Output is correct
20 Correct 87 ms 844 KB Output is correct
21 Correct 72 ms 960 KB Output is correct
22 Correct 65 ms 796 KB Output is correct
23 Correct 71 ms 916 KB Output is correct
24 Correct 69 ms 852 KB Output is correct
25 Correct 73 ms 836 KB Output is correct
26 Correct 68 ms 904 KB Output is correct
27 Correct 76 ms 912 KB Output is correct
28 Correct 65 ms 852 KB Output is correct
29 Correct 74 ms 828 KB Output is correct
30 Correct 63 ms 860 KB Output is correct
31 Correct 74 ms 924 KB Output is correct
32 Correct 71 ms 824 KB Output is correct
33 Correct 79 ms 836 KB Output is correct
34 Correct 66 ms 820 KB Output is correct
35 Correct 72 ms 872 KB Output is correct
36 Correct 72 ms 908 KB Output is correct
37 Correct 72 ms 820 KB Output is correct
38 Correct 76 ms 940 KB Output is correct
39 Correct 72 ms 820 KB Output is correct
40 Correct 72 ms 840 KB Output is correct
41 Correct 72 ms 836 KB Output is correct
42 Correct 73 ms 832 KB Output is correct
43 Correct 73 ms 924 KB Output is correct
44 Correct 75 ms 920 KB Output is correct

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 780 KB Output is correct
2 Correct 83 ms 816 KB Output is correct
3 Correct 86 ms 832 KB Output is correct
4 Correct 81 ms 908 KB Output is correct
5 Correct 69 ms 852 KB Output is correct
6 Correct 68 ms 836 KB Output is correct
7 Correct 69 ms 832 KB Output is correct
8 Correct 73 ms 868 KB Output is correct
9 Correct 98 ms 952 KB Output is correct
10 Correct 74 ms 820 KB Output is correct
11 Correct 72 ms 828 KB Output is correct
12 Correct 71 ms 920 KB Output is correct
13 Correct 73 ms 836 KB Output is correct
14 Correct 78 ms 904 KB Output is correct
15 Correct 73 ms 820 KB Output is correct
16 Correct 72 ms 836 KB Output is correct
17 Correct 77 ms 856 KB Output is correct
18 Correct 82 ms 936 KB Output is correct
19 Correct 341 ms 17604 KB Output is correct
20 Correct 305 ms 14356 KB Output is correct
21 Correct 192 ms 17392 KB Output is correct
22 Correct 189 ms 16952 KB Output is correct
23 Correct 110 ms 1968 KB Output is correct
24 Correct 112 ms 1904 KB Output is correct
25 Correct 201 ms 17836 KB Output is correct
26 Correct 209 ms 17556 KB Output is correct
27 Correct 212 ms 17664 KB Output is correct
28 Correct 250 ms 17740 KB Output is correct
29 Correct 205 ms 17520 KB Output is correct
30 Correct 124 ms 1964 KB Output is correct
31 Correct 213 ms 17736 KB Output is correct
32 Correct 218 ms 17232 KB Output is correct
33 Correct 116 ms 1924 KB Output is correct
34 Correct 242 ms 17624 KB Output is correct
35 Correct 166 ms 16448 KB Output is correct
36 Correct 116 ms 1860 KB Output is correct
37 Correct 111 ms 1956 KB Output is correct
38 Correct 252 ms 14548 KB Output is correct
39 Incorrect 128 ms 13588 KB Output isn't correct
40 Halted 0 ms 0 KB -