oj.uz

Submission #761467

# Submission time Handle Problem Language Result Execution time Memory
761467 2023-06-19T17:52:43 Z ksu2009en Brperm (RMI20_brperm) C++17
100 / 100
 2706 ms 46576 KB 
#pragma GCC optimize("O3")
#pragma GCC target("avx,avx2")
#include "brperm.h"
#include <iostream>
#include <vector>
#include <string>
#include <math.h>
#include <cmath>
#include <iomanip>
#include <cstdio>
#include <algorithm>
#include <numeric>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <deque>
#include <bitset>
#include <cstring>
#include <unordered_map>
 
using namespace std;
typedef int ll;
 
ll inv(ll n, ll sz){
    string a;
    
    for(int i = sz - 1; i >= 0; i--){
        if((n >> i) % 2 != 0)
            a += "1";
        else
            a += "0";
    }
        
    reverse(a.begin(), a.end());
    ll c = sz - a.size();
    
    for(int i = 0; i < c; i++)
        a += "0";
    
    ll n2 = 0, j = 0;
    
    for(int i = sz - 1; i >= 0; i--){
        if(a[j] == '1')
            n2 += (1 << i);
        
        j++;
    }
    
    return n2;
}
 
vector<pair<ll, ll>> d[20];
string a;
ll mp[500007][20];
 
ll N;
 
void init(int n, const char s[]) {
    N = n;
    for(int sz = 0; sz <= 19; sz++){
        for(int i = 0; i < (1 << sz); i++){
            if(inv(i, sz) > i){
                d[sz].push_back({i, inv(i, sz)});
            }
        }
        
        for(int i = 0; i <= n; i++)
            mp[i][sz] = -1;
    }
    
    for(int i = 0; i < n; i++)
        a.push_back(s[i]);
    
    return;
}
 
 
int query(int l, int k) {
    if(l + (1 << k) - 1 > N)
        return 0;
    
    if(mp[l][k] != -1)
        return mp[l][k];
    
    
    for(auto i: d[k]){
        if(a[l + i.first] != a[l + i.second])
            return mp[l][k] = 0;
    }
    
    return mp[l][k] = 1;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 205 ms 4724 KB Output is correct
2 Correct 213 ms 4788 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 205 ms 4724 KB Output is correct
2 Correct 213 ms 4788 KB Output is correct
3 Correct 235 ms 12768 KB Output is correct
4 Correct 235 ms 12692 KB Output is correct
5 Correct 268 ms 12812 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2706 ms 46556 KB Output is correct
2 Correct 416 ms 46548 KB Output is correct

Subtask #4
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 205 ms 4724 KB Output is correct
2 Correct 213 ms 4788 KB Output is correct
3 Correct 235 ms 12768 KB Output is correct
4 Correct 235 ms 12692 KB Output is correct
5 Correct 268 ms 12812 KB Output is correct
6 Correct 2706 ms 46556 KB Output is correct
7 Correct 416 ms 46548 KB Output is correct
8 Correct 434 ms 46576 KB Output is correct
9 Correct 429 ms 46524 KB Output is correct
10 Correct 424 ms 46432 KB Output is correct