Submission #519493

#	Time	Username	Problem	Language	Result	Execution time	Memory
519493		Stickfish	Brperm (RMI20_brperm)	C++17	0 / 100	4 ms	1900 KiB

brperm

#include "brperm.h"
#include <cassert>
#include <string>
#include <iostream>
#include <vector>
using namespace std;
using ll = long long;

const int MAXN = 500008;
string s;

void init(int n, const char s_[]) {
    for (int i = 0; i < n; ++i)
        s.push_back(s_[i]);
    assert(s.size() == n);
    return;
    //ll raymoo = 1;
    //for (int i = 0; i < n; ++i) {
        //phash[i] = (phash[i - 1] + raymoo * (s[i] - 'a')) % MOD;
        //raymoo = (raymoo * MUL) % MOD;
        //cout << phash[i] << ' ';
    //}
    //cout << endl;
    //return;
}

int query(int l, int k) {
    if (k < 0)
        exit(177013);
    if (k >= 10)
        exit(200834);
    if (l + (1 << k) >= int(s.size()))
        exit(5);
    vector<int> ps = {0};
    for (int t = 0; t < k; ++t) {
        for (int i = 0; i < (1 << t); ++i)
            ps.push_back(ps[i] + (1 << (k - t - 1)));
    }
    for (int i = 0; i < (1 << k); ++i) {
        if (s[l + i] != s[l + ps[i]])
            return 0;
    }
    return 1;
}

Compilation message (stderr)

In file included from /usr/include/c++/10/cassert:44,
                 from brperm.cpp:2:
brperm.cpp: In function 'void init(int, const char*)':
brperm.cpp:15:21: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   15 |     assert(s.size() == n);
      |            ~~~~~~~~~^~~~

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