Submission #1221804

#	Time	Username	Problem	Language	Result	Execution time	Memory
1221804		anonymous321	Brperm (RMI20_brperm)	C++20	0 / 100	692 ms	36764 KiB

brperm

#include "brperm.h"
#include <bits/stdc++.h>
using namespace std;
int MAXL;

vector<vector<bool>> sol;

struct node {
    map<int, int> child {};
    set<int> id {};
};

void init(int n, const char s[]) {
    MAXL = __lg(n) + 1;
    sol = vector<vector<bool>> (n, vector<bool>(MAXL, false));
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < MAXL; j++) {
            if (i + (1 << j) > sol.size()) break;
            string s1 = "";
            string s2 = "";
            for (int k = i; k < min(i+j, n); k++) {
                s1 += s[k];
                s2 += s[k];
            }
            reverse(s2.begin(), s2.end());
            if (s1 == s2) sol[i][j] = true;
        }
    }
    return;
}

int query(int i, int k) {
    if (k >= MAXL) return false;
    if (k == 0) return true;
    return sol[i+1][k];
}

• Subtask 1: 0 / 13
• Subtask 2: 0 / 37
• Subtask 3: 0 / 17
• Subtask 4: 0 / 33