oj.uz

Submission #257180

# Submission time Handle Problem Language Result Execution time Memory
257180 2020-08-03T17:12:12 Z blacktulip Klasika (COCI20_klasika) C++17
33 / 110
 284 ms 96580 KB 
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

#include <bits/stdc++.h>

using namespace std;

typedef long long lo;
typedef pair< lo,lo > PII;

#define fi first
#define se second
#define mp make_pair
#define int long long
#define endl "\n"
#define pb push_back
#define fio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define FOR for(int i=1;i<=n;i++)
#define mid ((start+end)/2)
#define ort ((bas+son)/2)

const lo inf = 1000000000000000000;
const lo KOK = 100000;
const lo LOG = 30;
const lo li = 200002;
const lo mod = 1000000007;

int n,m,b[li],a[li],k,flag,t,say=1,nodee=1,visit[li*30][5],xorr[li],l[li],r[li],x[li],y[li],q;
int cev;
char s[li][10];
set<int> st[li];
vector<int> v,vec[li],vect;

inline void build_trie(int xxx){
	int node=1;
	//~ cout<<xxx<<"*(*(*(\n";
	for(int i=0;i<(int)v.size();i++){
		st[node].insert(xxx);
		if(visit[node][v[i]])node=visit[node][v[i]];
		else{
			visit[node][v[i]]=++nodee;
			node=nodee;
		}
	}
	st[node].insert(xxx);
}

inline void ask_trie(int xx){
	int node=1;
	//~ cout<<l[xx]<<" : :  : "<<r[xx]<<endl;
	for(int i=0;i<(int)v.size();i++){
		auto it=st[visit[node][!v[i]]].lower_bound(l[xx]);
		//~ if(xx==3 && node==1)cout<<node<<"****"<<endl;
		//~ if(visit[node][!v[i]]){
		int yess=0;
			//~ cout<<*it<<endl;
			if(it!=st[visit[node][!v[i]]].end()){
				//~ if(xx==3)cout<<*it<<endl;
				
				if(visit[node][!v[i]] && *it<=r[xx]){node=visit[node][!v[i]];vect.pb(1);yess=1;}
			}
		//~ }
		if(yess==0){node=visit[node][v[i]];vect.pb(0);}
	}
}

inline void dfs(int node,int ata){
	l[node]=++q;
	r[node]=q;
	for(int i=0;i<(int)vec[node].size();i++){
		int go=vec[node][i];
		if(go==ata)continue;
		dfs(go,node);
		r[node]=max(r[node],r[go]);
	}
}

main(void){
	//~ freopen("at.txt","r",stdin);
	//~ freopen("att.txt","w",stdout);
	scanf("%lld",&t);
	for(int i=1;i<=30;i++)v.pb(0);
	build_trie(1);
	for(int i=1;i<=t;i++){
		//~ int x,y;
		scanf("%s %lld %lld",s[i],&x[i],&y[i]);
		if(s[i][0]=='A'){
			//~ xorr[++say]=(xorr[x[i]]^y[i]);
			vec[x[i]].pb(++say);
			vec[say].pb(x[i]);
			//~ v.clear();
			//~ while(at){
				//~ v.pb(at%2);
				//~ at/=2;
			//~ }
			//~ while((int)v.size()<35)v.pb(0);
			//~ reverse(v.begin(),v.end());
			//~ build_trie();
			//~ continue;
		}
		//~ int at=xorr[x];
		//~ v.clear();
		//~ while(at){
			//~ v.pb(at%2);
			//~ at/=2;
		//~ }
		//~ while((int)v.size()<35)v.pb(0);
		//~ reverse(v.begin(),v.end());
		//~ vect.clear();
		//~ ask_trie();
		//~ reverse(vect.begin(),vect.end());
		//~ int ans=0;
		//~ for(int i=0;i<(int)vect.size();i++){
			//~ if(vect[i]==1)ans=(ans^(1ll<<i));
		//~ }
		//~ printf("%lld\n",ans);
	}
	dfs(1,0);
	//~ cout<<l[5]<<" : : "<<r[5]<<" : : "<<xorr[]endl;
	say=1;
	for(int i=1;i<=t;i++){
		if(s[i][0]=='A'){
			xorr[++say]=(xorr[x[i]]^y[i]);
			//~ vec[x[i]].pb(say);
			int at=xorr[say];
			//~ vec[say].pb(x[i]);
			v.clear();
			while(at){
				v.pb(at%2);
				at/=2;
			}
			while((int)v.size()<30)v.pb(0);
			reverse(v.begin(),v.end());
			build_trie(l[say]);
			continue;
		}
		int at=xorr[x[i]];
		v.clear();
		while(at){
			v.pb(at%2);
			at/=2;
		}
		while((int)v.size()<30)v.pb(0);
		reverse(v.begin(),v.end());
		vect.clear();
		ask_trie(y[i]);
		reverse(vect.begin(),vect.end());
		int ans=0;
		for(int j=0;j<(int)vect.size();j++){
			if(vect[j]==1)ans=(ans^(1ll<<j));
		}
		printf("%lld\n",ans);
	}
	//~ cout<<xorr[3]<<endl;
	return 0;
}

Compilation message

klasika.cpp:78:10: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(void){
          ^
klasika.cpp: In function 'int main()':
klasika.cpp:81:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&t);
  ~~~~~^~~~~~~~~~~
klasika.cpp:86:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s %lld %lld",s[i],&x[i],&y[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14592 KB Output is correct
2 Correct 9 ms 14592 KB Output is correct
3 Correct 9 ms 14720 KB Output is correct
4 Correct 9 ms 14848 KB Output is correct
5 Correct 9 ms 14592 KB Output is correct
6 Correct 13 ms 14720 KB Output is correct
7 Correct 11 ms 14720 KB Output is correct
8 Correct 11 ms 14848 KB Output is correct
9 Correct 9 ms 14592 KB Output is correct
10 Correct 9 ms 14720 KB Output is correct
11 Correct 9 ms 14720 KB Output is correct
12 Correct 10 ms 14848 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14592 KB Output is correct
2 Correct 9 ms 14592 KB Output is correct
3 Correct 9 ms 14720 KB Output is correct
4 Correct 9 ms 14848 KB Output is correct
5 Correct 9 ms 14592 KB Output is correct
6 Correct 13 ms 14720 KB Output is correct
7 Correct 11 ms 14720 KB Output is correct
8 Correct 11 ms 14848 KB Output is correct
9 Correct 9 ms 14592 KB Output is correct
10 Correct 9 ms 14720 KB Output is correct
11 Correct 9 ms 14720 KB Output is correct
12 Correct 10 ms 14848 KB Output is correct
13 Correct 13 ms 15616 KB Output is correct
14 Correct 15 ms 16512 KB Output is correct
15 Correct 16 ms 17408 KB Output is correct
16 Correct 17 ms 18304 KB Output is correct
17 Correct 13 ms 15488 KB Output is correct
18 Correct 17 ms 16384 KB Output is correct
19 Correct 23 ms 17440 KB Output is correct
20 Correct 18 ms 18304 KB Output is correct
21 Correct 13 ms 15488 KB Output is correct
22 Correct 21 ms 16512 KB Output is correct
23 Correct 17 ms 17408 KB Output is correct
24 Correct 25 ms 18296 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Runtime error 284 ms 96580 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14592 KB Output is correct
2 Correct 9 ms 14592 KB Output is correct
3 Correct 9 ms 14720 KB Output is correct
4 Correct 9 ms 14848 KB Output is correct
5 Correct 9 ms 14592 KB Output is correct
6 Correct 13 ms 14720 KB Output is correct
7 Correct 11 ms 14720 KB Output is correct
8 Correct 11 ms 14848 KB Output is correct
9 Correct 9 ms 14592 KB Output is correct
10 Correct 9 ms 14720 KB Output is correct
11 Correct 9 ms 14720 KB Output is correct
12 Correct 10 ms 14848 KB Output is correct
13 Correct 13 ms 15616 KB Output is correct
14 Correct 15 ms 16512 KB Output is correct
15 Correct 16 ms 17408 KB Output is correct
16 Correct 17 ms 18304 KB Output is correct
17 Correct 13 ms 15488 KB Output is correct
18 Correct 17 ms 16384 KB Output is correct
19 Correct 23 ms 17440 KB Output is correct
20 Correct 18 ms 18304 KB Output is correct
21 Correct 13 ms 15488 KB Output is correct
22 Correct 21 ms 16512 KB Output is correct
23 Correct 17 ms 17408 KB Output is correct
24 Correct 25 ms 18296 KB Output is correct
25 Runtime error 284 ms 96580 KB Execution killed with signal 11 (could be triggered by violating memory limits)
26 Halted 0 ms 0 KB -