oj.uz

Submission #507604

# Submission time Handle Problem Language Result Execution time Memory
507604 2022-01-12T19:57:42 Z nichke Crossing (JOI21_crossing) C++14
26 / 100
 348 ms 17756 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+3;
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 83 ms 964 KB Output is correct
2 Correct 83 ms 868 KB Output is correct
3 Correct 87 ms 856 KB Output is correct
4 Correct 69 ms 808 KB Output is correct
5 Correct 81 ms 796 KB Output is correct
6 Correct 70 ms 780 KB Output is correct
7 Correct 74 ms 912 KB Output is correct
8 Correct 72 ms 856 KB Output is correct
9 Correct 74 ms 852 KB Output is correct
10 Correct 71 ms 836 KB Output is correct
11 Correct 75 ms 852 KB Output is correct
12 Correct 72 ms 828 KB Output is correct
13 Correct 73 ms 904 KB Output is correct
14 Correct 71 ms 944 KB Output is correct
15 Correct 83 ms 940 KB Output is correct
16 Correct 73 ms 900 KB Output is correct
17 Correct 77 ms 940 KB Output is correct
18 Correct 83 ms 960 KB Output is correct

Subtask #2
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 964 KB Output is correct
2 Correct 83 ms 868 KB Output is correct
3 Correct 87 ms 856 KB Output is correct
4 Correct 69 ms 808 KB Output is correct
5 Correct 81 ms 796 KB Output is correct
6 Correct 70 ms 780 KB Output is correct
7 Correct 74 ms 912 KB Output is correct
8 Correct 72 ms 856 KB Output is correct
9 Correct 74 ms 852 KB Output is correct
10 Correct 71 ms 836 KB Output is correct
11 Correct 75 ms 852 KB Output is correct
12 Correct 72 ms 828 KB Output is correct
13 Correct 73 ms 904 KB Output is correct
14 Correct 71 ms 944 KB Output is correct
15 Correct 83 ms 940 KB Output is correct
16 Correct 73 ms 900 KB Output is correct
17 Correct 77 ms 940 KB Output is correct
18 Correct 83 ms 960 KB Output is correct
19 Correct 343 ms 17584 KB Output is correct
20 Correct 348 ms 14400 KB Output is correct
21 Correct 180 ms 17304 KB Output is correct
22 Correct 186 ms 16928 KB Output is correct
23 Correct 121 ms 1992 KB Output is correct
24 Correct 114 ms 1864 KB Output is correct
25 Correct 242 ms 17540 KB Output is correct
26 Correct 227 ms 17756 KB Output is correct
27 Correct 230 ms 17600 KB Output is correct
28 Correct 252 ms 17644 KB Output is correct
29 Correct 206 ms 17500 KB Output is correct
30 Correct 134 ms 1880 KB Output is correct
31 Correct 207 ms 17612 KB Output is correct
32 Correct 274 ms 17256 KB Output is correct
33 Correct 120 ms 1848 KB Output is correct
34 Correct 249 ms 17564 KB Output is correct
35 Correct 184 ms 16524 KB Output is correct
36 Correct 162 ms 1908 KB Output is correct
37 Correct 112 ms 1912 KB Output is correct
38 Correct 255 ms 14640 KB Output is correct
39 Incorrect 140 ms 13544 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 83 ms 964 KB Output is correct
2 Correct 83 ms 868 KB Output is correct
3 Correct 87 ms 856 KB Output is correct
4 Correct 69 ms 808 KB Output is correct
5 Correct 81 ms 796 KB Output is correct
6 Correct 70 ms 780 KB Output is correct
7 Correct 74 ms 912 KB Output is correct
8 Correct 72 ms 856 KB Output is correct
9 Correct 74 ms 852 KB Output is correct
10 Correct 71 ms 836 KB Output is correct
11 Correct 75 ms 852 KB Output is correct
12 Correct 72 ms 828 KB Output is correct
13 Correct 73 ms 904 KB Output is correct
14 Correct 71 ms 944 KB Output is correct
15 Correct 83 ms 940 KB Output is correct
16 Correct 73 ms 900 KB Output is correct
17 Correct 77 ms 940 KB Output is correct
18 Correct 83 ms 960 KB Output is correct
19 Correct 81 ms 840 KB Output is correct
20 Correct 90 ms 944 KB Output is correct
21 Correct 76 ms 828 KB Output is correct
22 Correct 63 ms 832 KB Output is correct
23 Correct 73 ms 876 KB Output is correct
24 Correct 71 ms 904 KB Output is correct
25 Correct 72 ms 820 KB Output is correct
26 Correct 88 ms 884 KB Output is correct
27 Correct 73 ms 876 KB Output is correct
28 Correct 67 ms 848 KB Output is correct
29 Correct 94 ms 916 KB Output is correct
30 Correct 68 ms 836 KB Output is correct
31 Correct 75 ms 836 KB Output is correct
32 Correct 73 ms 964 KB Output is correct
33 Correct 76 ms 832 KB Output is correct
34 Correct 72 ms 836 KB Output is correct
35 Correct 74 ms 824 KB Output is correct
36 Correct 74 ms 936 KB Output is correct
37 Correct 83 ms 992 KB Output is correct
38 Correct 92 ms 832 KB Output is correct
39 Correct 73 ms 836 KB Output is correct
40 Correct 73 ms 876 KB Output is correct
41 Correct 75 ms 936 KB Output is correct
42 Correct 73 ms 868 KB Output is correct
43 Correct 70 ms 848 KB Output is correct
44 Correct 88 ms 888 KB Output is correct

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 964 KB Output is correct
2 Correct 83 ms 868 KB Output is correct
3 Correct 87 ms 856 KB Output is correct
4 Correct 69 ms 808 KB Output is correct
5 Correct 81 ms 796 KB Output is correct
6 Correct 70 ms 780 KB Output is correct
7 Correct 74 ms 912 KB Output is correct
8 Correct 72 ms 856 KB Output is correct
9 Correct 74 ms 852 KB Output is correct
10 Correct 71 ms 836 KB Output is correct
11 Correct 75 ms 852 KB Output is correct
12 Correct 72 ms 828 KB Output is correct
13 Correct 73 ms 904 KB Output is correct
14 Correct 71 ms 944 KB Output is correct
15 Correct 83 ms 940 KB Output is correct
16 Correct 73 ms 900 KB Output is correct
17 Correct 77 ms 940 KB Output is correct
18 Correct 83 ms 960 KB Output is correct
19 Correct 343 ms 17584 KB Output is correct
20 Correct 348 ms 14400 KB Output is correct
21 Correct 180 ms 17304 KB Output is correct
22 Correct 186 ms 16928 KB Output is correct
23 Correct 121 ms 1992 KB Output is correct
24 Correct 114 ms 1864 KB Output is correct
25 Correct 242 ms 17540 KB Output is correct
26 Correct 227 ms 17756 KB Output is correct
27 Correct 230 ms 17600 KB Output is correct
28 Correct 252 ms 17644 KB Output is correct
29 Correct 206 ms 17500 KB Output is correct
30 Correct 134 ms 1880 KB Output is correct
31 Correct 207 ms 17612 KB Output is correct
32 Correct 274 ms 17256 KB Output is correct
33 Correct 120 ms 1848 KB Output is correct
34 Correct 249 ms 17564 KB Output is correct
35 Correct 184 ms 16524 KB Output is correct
36 Correct 162 ms 1908 KB Output is correct
37 Correct 112 ms 1912 KB Output is correct
38 Correct 255 ms 14640 KB Output is correct
39 Incorrect 140 ms 13544 KB Output isn't correct
40 Halted 0 ms 0 KB -