oj.uz

Submission #257192

# Submission time Handle Problem Language Result Execution time Memory
257192 2020-08-03T17:53:14 Z blacktulip Klasika (COCI20_klasika) C++17
33 / 110
 2220 ms 524292 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;
vector<set<int>> st;

inline void build_trie(int xxx){
	int node=1;
	//~ cout<<xxx<<"*(*(*(\n";
	for(int i=0;i<(int)v.size();i++){
		auto it=st[node].lower_bound(l[xxx]);
		int yess=0;
		if(it!=st[node].end()){
			if(*it<=r[xxx])yess=1;
		}
		if(yess==0)st[node].insert(l[xxx]);
		if(visit[node][v[i]])node=visit[node][v[i]];
		else{
			visit[node][v[i]]=++nodee;
			node=nodee;
		}
	}
	auto it=st[node].lower_bound(l[xxx]);
	int yess=0;
	if(it!=st[node].end()){
		if(*it<=r[xxx])yess=1;
	}
	if(yess==0)st[node].insert(l[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 && visit[node][v[i]]){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);
	//~ set.resize();
	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);
	st.resize(say*30);
	for(int i=1;i<=30;i++)v.pb(0);
	build_trie(1);
	
	
	//~ 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(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:89:10: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(void){
          ^
klasika.cpp: In function 'int main()':
klasika.cpp:92:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&t);
  ~~~~~^~~~~~~~~~~
klasika.cpp:96:8: 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 4 ms 5248 KB Output is correct
2 Correct 4 ms 5376 KB Output is correct
3 Correct 4 ms 5504 KB Output is correct
4 Correct 4 ms 5632 KB Output is correct
5 Correct 4 ms 5248 KB Output is correct
6 Correct 4 ms 5376 KB Output is correct
7 Correct 4 ms 5504 KB Output is correct
8 Correct 5 ms 5760 KB Output is correct
9 Correct 4 ms 5248 KB Output is correct
10 Correct 4 ms 5504 KB Output is correct
11 Correct 4 ms 5632 KB Output is correct
12 Correct 4 ms 5632 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5248 KB Output is correct
2 Correct 4 ms 5376 KB Output is correct
3 Correct 4 ms 5504 KB Output is correct
4 Correct 4 ms 5632 KB Output is correct
5 Correct 4 ms 5248 KB Output is correct
6 Correct 4 ms 5376 KB Output is correct
7 Correct 4 ms 5504 KB Output is correct
8 Correct 5 ms 5760 KB Output is correct
9 Correct 4 ms 5248 KB Output is correct
10 Correct 4 ms 5504 KB Output is correct
11 Correct 4 ms 5632 KB Output is correct
12 Correct 4 ms 5632 KB Output is correct
13 Correct 8 ms 6784 KB Output is correct
14 Correct 11 ms 8320 KB Output is correct
15 Correct 12 ms 9856 KB Output is correct
16 Correct 14 ms 11136 KB Output is correct
17 Correct 9 ms 6656 KB Output is correct
18 Correct 12 ms 8192 KB Output is correct
19 Correct 12 ms 9728 KB Output is correct
20 Correct 15 ms 11136 KB Output is correct
21 Correct 8 ms 6656 KB Output is correct
22 Correct 11 ms 8192 KB Output is correct
23 Correct 13 ms 9728 KB Output is correct
24 Correct 15 ms 11136 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 974 ms 156408 KB Output is correct
2 Correct 1688 ms 295368 KB Output is correct
3 Correct 2220 ms 432180 KB Output is correct
4 Runtime error 2124 ms 524292 KB Execution killed with signal 9 (could be triggered by violating memory limits)
5 Halted 0 ms 0 KB -

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5248 KB Output is correct
2 Correct 4 ms 5376 KB Output is correct
3 Correct 4 ms 5504 KB Output is correct
4 Correct 4 ms 5632 KB Output is correct
5 Correct 4 ms 5248 KB Output is correct
6 Correct 4 ms 5376 KB Output is correct
7 Correct 4 ms 5504 KB Output is correct
8 Correct 5 ms 5760 KB Output is correct
9 Correct 4 ms 5248 KB Output is correct
10 Correct 4 ms 5504 KB Output is correct
11 Correct 4 ms 5632 KB Output is correct
12 Correct 4 ms 5632 KB Output is correct
13 Correct 8 ms 6784 KB Output is correct
14 Correct 11 ms 8320 KB Output is correct
15 Correct 12 ms 9856 KB Output is correct
16 Correct 14 ms 11136 KB Output is correct
17 Correct 9 ms 6656 KB Output is correct
18 Correct 12 ms 8192 KB Output is correct
19 Correct 12 ms 9728 KB Output is correct
20 Correct 15 ms 11136 KB Output is correct
21 Correct 8 ms 6656 KB Output is correct
22 Correct 11 ms 8192 KB Output is correct
23 Correct 13 ms 9728 KB Output is correct
24 Correct 15 ms 11136 KB Output is correct
25 Correct 974 ms 156408 KB Output is correct
26 Correct 1688 ms 295368 KB Output is correct
27 Correct 2220 ms 432180 KB Output is correct
28 Runtime error 2124 ms 524292 KB Execution killed with signal 9 (could be triggered by violating memory limits)
29 Halted 0 ms 0 KB -