oj.uz

Submission #199859

# Submission time Handle Problem Language Result Execution time Memory
199859 2020-02-03T21:35:24 Z mdn2002 Klasika (COCI20_klasika) C++14
33 / 110
 830 ms 97492 KB 
#include<bits/stdc++.h>
using namespace std;
const int mod=1e9+7;
long long n,a[200005],k,trie[6000006][4],tim[9000006][4],ans;
int en[200005],ot[200005],tmm;
vector<int>gr[200005],aq,bq;
vector<string>sq;
void dfs(int x,int p)
{
    en[x]=++tmm;
    for(int i=0;i<gr[x].size();i++)
    {
        int u=gr[x][i];
        if(u==p)continue;
        dfs(u,x);
    }
    ot[x]=tmm;
}
string to(long long x)
{
    string s;
    while(x)
    {
        s.push_back('0'+(x%2));
        x/=2;
    }
    while(s.size()!=32)s.push_back('0');
    reverse(s.begin(),s.end());
    return s;
}
void ad(string s)
{
    int nod=0;
    for(int i=0;i<s.size();i++)
    {
        int x=s[i]-'0';
        if(trie[nod][x]==0)trie[nod][x]=++k;
        nod=trie[nod][x];
    }
}
void qu(string s,int z,int x)
{
    if(s[z]=='1')
    {
        if(trie[x][0]!=0)
        {
            ans*=2;
            ans++;
            qu(s,z+1,trie[x][0]);
        }
        else if(trie[x][1]!=0)
        {
            ans*=2;
            qu(s,z+1,trie[x][1]);
        }
    }
    else
    {
        if(trie[x][1]!=0)
        {
            ans*=2;
            ans++;
            qu(s,z+1,trie[x][1]);
        }
        else if(trie[x][0]!=0)
        {
            ans*=2;
            qu(s,z+1,trie[x][0]);
        }
    }
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    //freopen("gpsduel.in","r",stdin);
    //freopen("gpsduel.out","w",stdout);
    cin>>n;
    int num=1;
    for(int i=0;i<n;i++)
    {
        string s;
        long long x,y;
        cin>>s>>x>>y;
        sq.push_back(s);
        aq.push_back(x);
        bq.push_back(y);
        if(s=="Add")
        {
            num++;
            gr[x].push_back(num);
        }
    }
    dfs(1,0);
    num=1;
    for(int i=0;i<n;i++)
    {
        string s=sq[i];
        long long x=aq[i],y=bq[i];
        if(s=="Add")
        {
            num++;
            a[num]=a[x]^y;
            string st=to(a[num]);
            ad(st);
        }
        else
        {
            ans=0;
            long long b=a[x];
            qu(to(b),0,0);
            cout<<max(b,ans)<<endl;
        }
    }
}

Compilation message

klasika.cpp: In function 'void dfs(int, int)':
klasika.cpp:11:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<gr[x].size();i++)
                 ~^~~~~~~~~~~~~
klasika.cpp: In function 'void ad(std::__cxx11::string)':
klasika.cpp:34:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<s.size();i++)
                 ~^~~~~~~~~

Subtask #1
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 8 ms 5112 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 8 ms 5112 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 830 ms 39036 KB Output is correct
2 Correct 721 ms 59048 KB Output is correct
3 Correct 624 ms 78492 KB Output is correct
4 Correct 484 ms 97492 KB Output is correct
5 Correct 826 ms 37132 KB Output is correct
6 Correct 727 ms 54804 KB Output is correct
7 Correct 649 ms 71556 KB Output is correct
8 Correct 520 ms 90152 KB Output is correct
9 Correct 828 ms 39316 KB Output is correct
10 Correct 704 ms 57492 KB Output is correct
11 Correct 597 ms 74916 KB Output is correct
12 Correct 491 ms 91828 KB Output is correct

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Incorrect 8 ms 5112 KB Output isn't correct
2 Halted 0 ms 0 KB -