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Submission #336442

# Submission time Handle Problem Language Result Execution time Memory
336442 2020-12-15T10:45:26 Z ewwdsgfvsd Klasika (COCI20_klasika) C++17
33 / 110
 629 ms 524292 KB 
#include <bits/stdc++.h>
//#pragma GCC optimize("Ofast")
/*#pragma GCC optimize("O2")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("avx,avx2,sse,sse2,fma")*/
using namespace std;
using ll = long long int;
#define F first
#define S second
#define pb push_back
#define fast_io ios::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
const int N=2e5+10,LN=31,SQ=200;
const ll INF=1e18;
const int MOD=1000000007 /*998244353*/;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using pll=pair<ll,ll>;
using pii=pair<int,int>;
#define ordered_set tree<pair<pll,ll>, null_type,less<pair<pll,ll>>, rb_tree_tag,tree_order_statistics_node_update>
ll pow(ll x, ll y, ll mod){
    ll ans=1;
    while (y != 0) {
        if (y & 1) ans = ans * x % mod;
        y >>= 1;
        x = x * x % mod;
    }
    return ans;
}
struct tr{
    vector<ll> nx[2];
    ll k;
    void add(ll x) {
        ll v = 0;
        for (ll i=LN-1;i>=0;i--) {
            ll y=bool(x&(1<<i));
            if(!nx[y][v]) nx[y][v] = k++;
            v = nx[y][v];
        }
    }
    ll get(ll x){
        ll res=0,v=0;
        if(k==1) return 0;
        for(ll i=LN-1; i>=0; i--){
            ll y=((x&(1<<i))!=0);
            y=1-y;
            if(nx[y][v]) v=nx[y][v],res+=(1<<i);
            else v=nx[1-y][v];
        }
        return res;
    }
};
tr f[4*N];
ll q,a[N],t=1,st[N],fn[N],g=2;
vector<pair<ll,pll>> qu;
vector<pll> adj[N];
void dfs(ll v){
    st[v]=t++;
    for(pll p :adj[v]) a[p.F]=a[v]^p.S,dfs(p.F);
    fn[v]=t;
}
void build(ll v, ll l, ll r) {
    f[v].k=1;
    f[v].nx[0].resize((r-l+2)*(LN-1),0);
    f[v].nx[1].resize((r-l+2)*(LN-1),0);
    if (r-l==1) return;
    ll m=(l+r)/2;
    build(v*2,l,m);
    build(v*2+1,m,r);
}
void upd(ll v, ll l, ll r, ll p, ll x){
    f[v].add(x);
    //cout << l << ' ' << r << ' ' << f[v].get(0) << '\n';
    if(r-l==1) return;
    ll m=(l+r)/2;
    if(p<m) upd(v*2,l,m,p,x);
    else upd(v*2+1,m,r,p,x);
}
ll get(ll v, ll l, ll r, ll tl, ll tr, ll x){
    if(tl>=tr) return 0;
    if(l==tl && r==tr) return f[v].get(x);
    ll m=(l+r)/2;
    return max(get(v*2,l,m,tl,min(m,tr),x),get(v*2+1,m,r,max(m,tl),tr,x));
}
int main(){
    fast_io;
    cin >> q;
    for(ll i=0; i<q; i++){
        string s;
        ll c,x,y;
        cin >> s >> x >> y;
        if(s[0]=='A') c=0;
        else c=1;
        if(c==0){
            qu.pb({c,{x,g}});
            adj[x].pb({g++,y});
        }else qu.pb({c,{x,y}});
    }
    dfs(1);
    build(1,1,t);
    upd(1,1,t,st[1],a[1]);
    for(ll i=0; i<q; i++){
        ll x=qu[i].S.F,y=qu[i].S.S;
        if(qu[i].F==0){
            //cout << i << ' ' << y << '\n';
            upd(1,1,t,st[y],a[y]);
        }else{
            //cout << (a[x]^a[y]) << '\n';
            cout << get(1,1,t,st[y],fn[y],a[x]) << '\n';
        }
    }
    //cout << st[4] << ' ' << fn[4] << ' ' << st[5] << ' ' << fn[5] << '\n';
    return 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 49132 KB Output is correct
2 Correct 28 ms 49260 KB Output is correct
3 Correct 28 ms 49644 KB Output is correct
4 Correct 29 ms 49772 KB Output is correct
5 Correct 28 ms 49132 KB Output is correct
6 Correct 28 ms 49260 KB Output is correct
7 Correct 28 ms 49516 KB Output is correct
8 Correct 28 ms 49900 KB Output is correct
9 Correct 29 ms 49132 KB Output is correct
10 Correct 28 ms 49388 KB Output is correct
11 Correct 29 ms 49644 KB Output is correct
12 Correct 29 ms 49772 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 49132 KB Output is correct
2 Correct 28 ms 49260 KB Output is correct
3 Correct 28 ms 49644 KB Output is correct
4 Correct 29 ms 49772 KB Output is correct
5 Correct 28 ms 49132 KB Output is correct
6 Correct 28 ms 49260 KB Output is correct
7 Correct 28 ms 49516 KB Output is correct
8 Correct 28 ms 49900 KB Output is correct
9 Correct 29 ms 49132 KB Output is correct
10 Correct 28 ms 49388 KB Output is correct
11 Correct 29 ms 49644 KB Output is correct
12 Correct 29 ms 49772 KB Output is correct
13 Correct 37 ms 51692 KB Output is correct
14 Correct 37 ms 54764 KB Output is correct
15 Correct 39 ms 58092 KB Output is correct
16 Correct 41 ms 61036 KB Output is correct
17 Correct 32 ms 51564 KB Output is correct
18 Correct 40 ms 54636 KB Output is correct
19 Correct 39 ms 57856 KB Output is correct
20 Correct 42 ms 60908 KB Output is correct
21 Correct 32 ms 51564 KB Output is correct
22 Correct 36 ms 54636 KB Output is correct
23 Correct 38 ms 57836 KB Output is correct
24 Correct 40 ms 60848 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 629 ms 442576 KB Output is correct
2 Runtime error 349 ms 524292 KB Execution killed with signal 9 (could be triggered by violating memory limits)
3 Halted 0 ms 0 KB -

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 49132 KB Output is correct
2 Correct 28 ms 49260 KB Output is correct
3 Correct 28 ms 49644 KB Output is correct
4 Correct 29 ms 49772 KB Output is correct
5 Correct 28 ms 49132 KB Output is correct
6 Correct 28 ms 49260 KB Output is correct
7 Correct 28 ms 49516 KB Output is correct
8 Correct 28 ms 49900 KB Output is correct
9 Correct 29 ms 49132 KB Output is correct
10 Correct 28 ms 49388 KB Output is correct
11 Correct 29 ms 49644 KB Output is correct
12 Correct 29 ms 49772 KB Output is correct
13 Correct 37 ms 51692 KB Output is correct
14 Correct 37 ms 54764 KB Output is correct
15 Correct 39 ms 58092 KB Output is correct
16 Correct 41 ms 61036 KB Output is correct
17 Correct 32 ms 51564 KB Output is correct
18 Correct 40 ms 54636 KB Output is correct
19 Correct 39 ms 57856 KB Output is correct
20 Correct 42 ms 60908 KB Output is correct
21 Correct 32 ms 51564 KB Output is correct
22 Correct 36 ms 54636 KB Output is correct
23 Correct 38 ms 57836 KB Output is correct
24 Correct 40 ms 60848 KB Output is correct
25 Correct 629 ms 442576 KB Output is correct
26 Runtime error 349 ms 524292 KB Execution killed with signal 9 (could be triggered by violating memory limits)
27 Halted 0 ms 0 KB -