oj.uz

Submission #257194

# Submission time Handle Problem Language Result Execution time Memory
257194 2020-08-03T17:57:55 Z blacktulip Klasika (COCI20_klasika) C++17
110 / 110
 3783 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];
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{
			st.resize(nodee+2);
			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);
	}
	st.resize(2);
	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:90:10: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(void){
          ^
klasika.cpp: In function 'int main()':
klasika.cpp:93:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&t);
  ~~~~~^~~~~~~~~~~
klasika.cpp:97:8: 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 4 ms 5632 KB Output is correct
9 Correct 4 ms 5248 KB Output is correct
10 Correct 5 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 4 ms 5632 KB Output is correct
9 Correct 4 ms 5248 KB Output is correct
10 Correct 5 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 6812 KB Output is correct
14 Correct 11 ms 8504 KB Output is correct
15 Correct 13 ms 9268 KB Output is correct
16 Correct 15 ms 11956 KB Output is correct
17 Correct 8 ms 6844 KB Output is correct
18 Correct 11 ms 8504 KB Output is correct
19 Correct 14 ms 9140 KB Output is correct
20 Correct 14 ms 10420 KB Output is correct
21 Correct 9 ms 6844 KB Output is correct
22 Correct 11 ms 8504 KB Output is correct
23 Correct 14 ms 9140 KB Output is correct
24 Correct 15 ms 10420 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1010 ms 132460 KB Output is correct
2 Correct 1720 ms 259512 KB Output is correct
3 Correct 2408 ms 341852 KB Output is correct
4 Correct 3223 ms 524288 KB Output is correct
5 Correct 1052 ms 133868 KB Output is correct
6 Correct 1805 ms 260524 KB Output is correct
7 Correct 2523 ms 343016 KB Output is correct
8 Correct 3284 ms 522456 KB Output is correct
9 Correct 1047 ms 134288 KB Output is correct
10 Correct 1812 ms 260728 KB Output is correct
11 Correct 2534 ms 344732 KB Output is correct
12 Correct 3316 ms 522964 KB Output is correct

Subtask #4
44.0 / 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 4 ms 5632 KB Output is correct
9 Correct 4 ms 5248 KB Output is correct
10 Correct 5 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 6812 KB Output is correct
14 Correct 11 ms 8504 KB Output is correct
15 Correct 13 ms 9268 KB Output is correct
16 Correct 15 ms 11956 KB Output is correct
17 Correct 8 ms 6844 KB Output is correct
18 Correct 11 ms 8504 KB Output is correct
19 Correct 14 ms 9140 KB Output is correct
20 Correct 14 ms 10420 KB Output is correct
21 Correct 9 ms 6844 KB Output is correct
22 Correct 11 ms 8504 KB Output is correct
23 Correct 14 ms 9140 KB Output is correct
24 Correct 15 ms 10420 KB Output is correct
25 Correct 1010 ms 132460 KB Output is correct
26 Correct 1720 ms 259512 KB Output is correct
27 Correct 2408 ms 341852 KB Output is correct
28 Correct 3223 ms 524288 KB Output is correct
29 Correct 1052 ms 133868 KB Output is correct
30 Correct 1805 ms 260524 KB Output is correct
31 Correct 2523 ms 343016 KB Output is correct
32 Correct 3284 ms 522456 KB Output is correct
33 Correct 1047 ms 134288 KB Output is correct
34 Correct 1812 ms 260728 KB Output is correct
35 Correct 2534 ms 344732 KB Output is correct
36 Correct 3316 ms 522964 KB Output is correct
37 Correct 1545 ms 135344 KB Output is correct
38 Correct 2312 ms 262672 KB Output is correct
39 Correct 2849 ms 347476 KB Output is correct
40 Correct 3328 ms 524288 KB Output is correct
41 Correct 1805 ms 134372 KB Output is correct
42 Correct 2571 ms 260756 KB Output is correct
43 Correct 3031 ms 343308 KB Output is correct
44 Correct 3675 ms 522888 KB Output is correct
45 Correct 1916 ms 134768 KB Output is correct
46 Correct 2699 ms 261352 KB Output is correct
47 Correct 3231 ms 343472 KB Output is correct
48 Correct 3783 ms 523336 KB Output is correct