oj.uz

Submission #328456

# Submission time Handle Problem Language Result Execution time Memory
328456 2020-11-16T16:43:44 Z BeanZ Klasika (COCI20_klasika) C++14
33 / 110
 1892 ms 524292 KB 
// I_Love_LPL
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define endl '\n'
const int N = 2e5 + 5;
const int mod = 123456789;
const long long oo = 1e18;
ll timer = 1, timer2 = 0, timer3 = 1;
ll cost[N], tin[N], tout[N], dp[N * 32][2];
vector<ll> node[N];
set<ll> mem[N * 32];
void dfs(ll u){
    timer2++;
    tin[u] = timer2;
    for (auto j : node[u]){
        dfs(j);
    }
    tout[u] = timer2;
}
void add(ll u, ll p){
    ll now = 1;
    for (int i = 30; i >= 0; i--){
        ll a = ((u & (1 << i)) > 0);
        if (dp[now][a] == 0){
            timer3++;
            dp[now][a] = timer3;
        }
        now = dp[now][a];
        mem[now].insert(p);
    }
}
ll get(ll u, ll l, ll r){
    ll now = 1;
    ll res = 0;
    for (int i = 30; i >= 0; i--){
        ll a = ((u & (1 << i)) > 0);
        ll id = dp[now][1 - a];
        bool flag = true;
        auto it = mem[id].lower_bound(l);
        if (it == mem[id].end() || (*it) > r) flag = false;
        if (flag){
            res = res + (1 << i);
            now = id;
        } else {
            now = dp[now][a];
        }
        /*
        if (u == 0){
            if (it == mem[id].end()) cout << -1 << " ";
            else cout << (*it) << " ";
            cout << id << " ";
        }*/
    }
    //cout << now << " " << res << endl;
    return res;
}
string task[N];
ll x[N], y[N];
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    if (fopen("A.inp", "r")){
        freopen("test.inp", "r", stdin);
        freopen("test.out", "w", stdout);
    }
    ll q;
    cin >> q;
    for (int i = 1; i <= q; i++){
        cin >> task[i];
        if (task[i] == "Add"){
            cin >> x[i] >> y[i];
            timer++;
            cost[timer] = cost[x[i]] ^ y[i];
            node[x[i]].push_back(timer);
            x[i] = timer;
        } else {
            cin >> x[i] >> y[i];
        }
    }
    dfs(1);
    add(0, tin[1]);
    for (int i = 1; i <= q; i++){
        if (task[i] == "Add"){
            add(cost[x[i]], tin[x[i]]);
        } else {
            cout << get(cost[x[i]], tin[y[i]], tout[y[i]]) << endl;
        }
    }
    //cout << dp[1][0] << endl;
}
/*
3
Add 1 9
Add 2 3
Query 1 2
*/

Compilation message

klasika.cpp: In function 'int main()':
klasika.cpp:64:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   64 |         freopen("test.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
klasika.cpp:65:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   65 |         freopen("test.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 180 ms 312044 KB Output is correct
2 Correct 179 ms 312192 KB Output is correct
3 Correct 177 ms 312172 KB Output is correct
4 Correct 181 ms 312172 KB Output is correct
5 Correct 181 ms 312132 KB Output is correct
6 Correct 176 ms 312124 KB Output is correct
7 Correct 176 ms 312172 KB Output is correct
8 Correct 179 ms 312172 KB Output is correct
9 Correct 177 ms 312044 KB Output is correct
10 Correct 178 ms 312044 KB Output is correct
11 Correct 174 ms 312172 KB Output is correct
12 Correct 178 ms 312220 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 180 ms 312044 KB Output is correct
2 Correct 179 ms 312192 KB Output is correct
3 Correct 177 ms 312172 KB Output is correct
4 Correct 181 ms 312172 KB Output is correct
5 Correct 181 ms 312132 KB Output is correct
6 Correct 176 ms 312124 KB Output is correct
7 Correct 176 ms 312172 KB Output is correct
8 Correct 179 ms 312172 KB Output is correct
9 Correct 177 ms 312044 KB Output is correct
10 Correct 178 ms 312044 KB Output is correct
11 Correct 174 ms 312172 KB Output is correct
12 Correct 178 ms 312220 KB Output is correct
13 Correct 180 ms 312940 KB Output is correct
14 Correct 188 ms 313656 KB Output is correct
15 Correct 194 ms 314220 KB Output is correct
16 Correct 184 ms 314988 KB Output is correct
17 Correct 181 ms 312812 KB Output is correct
18 Correct 183 ms 313452 KB Output is correct
19 Correct 182 ms 314252 KB Output is correct
20 Correct 186 ms 315116 KB Output is correct
21 Correct 182 ms 312684 KB Output is correct
22 Correct 180 ms 313472 KB Output is correct
23 Correct 190 ms 314220 KB Output is correct
24 Correct 208 ms 314860 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 997 ms 390892 KB Output is correct
2 Correct 1639 ms 461564 KB Output is correct
3 Runtime error 1892 ms 524292 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 180 ms 312044 KB Output is correct
2 Correct 179 ms 312192 KB Output is correct
3 Correct 177 ms 312172 KB Output is correct
4 Correct 181 ms 312172 KB Output is correct
5 Correct 181 ms 312132 KB Output is correct
6 Correct 176 ms 312124 KB Output is correct
7 Correct 176 ms 312172 KB Output is correct
8 Correct 179 ms 312172 KB Output is correct
9 Correct 177 ms 312044 KB Output is correct
10 Correct 178 ms 312044 KB Output is correct
11 Correct 174 ms 312172 KB Output is correct
12 Correct 178 ms 312220 KB Output is correct
13 Correct 180 ms 312940 KB Output is correct
14 Correct 188 ms 313656 KB Output is correct
15 Correct 194 ms 314220 KB Output is correct
16 Correct 184 ms 314988 KB Output is correct
17 Correct 181 ms 312812 KB Output is correct
18 Correct 183 ms 313452 KB Output is correct
19 Correct 182 ms 314252 KB Output is correct
20 Correct 186 ms 315116 KB Output is correct
21 Correct 182 ms 312684 KB Output is correct
22 Correct 180 ms 313472 KB Output is correct
23 Correct 190 ms 314220 KB Output is correct
24 Correct 208 ms 314860 KB Output is correct
25 Correct 997 ms 390892 KB Output is correct
26 Correct 1639 ms 461564 KB Output is correct
27 Runtime error 1892 ms 524292 KB Execution killed with signal 9 (could be triggered by violating memory limits)
28 Halted 0 ms 0 KB -