oj.uz

Submission #257155

# Submission time Handle Problem Language Result Execution time Memory
257155 2020-08-03T16:34:23 Z blacktulip Klasika (COCI20_klasika) C++17
33 / 110
 1852 ms 524288 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*30];
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 173 ms 287048 KB Output is correct
2 Correct 167 ms 287096 KB Output is correct
3 Correct 174 ms 287224 KB Output is correct
4 Correct 167 ms 287352 KB Output is correct
5 Correct 172 ms 287224 KB Output is correct
6 Correct 166 ms 287096 KB Output is correct
7 Correct 164 ms 287096 KB Output is correct
8 Correct 166 ms 287480 KB Output is correct
9 Correct 166 ms 286968 KB Output is correct
10 Correct 172 ms 287096 KB Output is correct
11 Correct 170 ms 287224 KB Output is correct
12 Correct 170 ms 287352 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 173 ms 287048 KB Output is correct
2 Correct 167 ms 287096 KB Output is correct
3 Correct 174 ms 287224 KB Output is correct
4 Correct 167 ms 287352 KB Output is correct
5 Correct 172 ms 287224 KB Output is correct
6 Correct 166 ms 287096 KB Output is correct
7 Correct 164 ms 287096 KB Output is correct
8 Correct 166 ms 287480 KB Output is correct
9 Correct 166 ms 286968 KB Output is correct
10 Correct 172 ms 287096 KB Output is correct
11 Correct 170 ms 287224 KB Output is correct
12 Correct 170 ms 287352 KB Output is correct
13 Correct 177 ms 287992 KB Output is correct
14 Correct 187 ms 288888 KB Output is correct
15 Correct 173 ms 289912 KB Output is correct
16 Correct 184 ms 290740 KB Output is correct
17 Correct 181 ms 287968 KB Output is correct
18 Correct 175 ms 288888 KB Output is correct
19 Correct 177 ms 289808 KB Output is correct
20 Correct 177 ms 290680 KB Output is correct
21 Correct 184 ms 287992 KB Output is correct
22 Correct 175 ms 289016 KB Output is correct
23 Correct 178 ms 289784 KB Output is correct
24 Correct 179 ms 290576 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1076 ms 382464 KB Output is correct
2 Correct 1675 ms 465956 KB Output is correct
3 Runtime error 1852 ms 524288 KB Execution killed with signal 9 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 173 ms 287048 KB Output is correct
2 Correct 167 ms 287096 KB Output is correct
3 Correct 174 ms 287224 KB Output is correct
4 Correct 167 ms 287352 KB Output is correct
5 Correct 172 ms 287224 KB Output is correct
6 Correct 166 ms 287096 KB Output is correct
7 Correct 164 ms 287096 KB Output is correct
8 Correct 166 ms 287480 KB Output is correct
9 Correct 166 ms 286968 KB Output is correct
10 Correct 172 ms 287096 KB Output is correct
11 Correct 170 ms 287224 KB Output is correct
12 Correct 170 ms 287352 KB Output is correct
13 Correct 177 ms 287992 KB Output is correct
14 Correct 187 ms 288888 KB Output is correct
15 Correct 173 ms 289912 KB Output is correct
16 Correct 184 ms 290740 KB Output is correct
17 Correct 181 ms 287968 KB Output is correct
18 Correct 175 ms 288888 KB Output is correct
19 Correct 177 ms 289808 KB Output is correct
20 Correct 177 ms 290680 KB Output is correct
21 Correct 184 ms 287992 KB Output is correct
22 Correct 175 ms 289016 KB Output is correct
23 Correct 178 ms 289784 KB Output is correct
24 Correct 179 ms 290576 KB Output is correct
25 Correct 1076 ms 382464 KB Output is correct
26 Correct 1675 ms 465956 KB Output is correct
27 Runtime error 1852 ms 524288 KB Execution killed with signal 9 (could be triggered by violating memory limits)
28 Halted 0 ms 0 KB -