Submission #858140

#	Time	Username	Problem	Language	Result	Execution time	Memory
858140		iulia_morariu	Brperm (RMI20_brperm)	C++14	50 / 100	3048 ms	1024 KiB

brperm

#include <bits/stdc++.h>
#include <brperm.h>

using namespace std;
char v[100000];
int n;

void init ( int N,  const char s[] ){
    n = N;
    for(int i = 0; i < n; i++) v[i] = s[i];
}

int transform(int nr, int k){
    vector <int> b;
    while(nr > 0){
        b.push_back(nr % 2);
        nr /= 2;
    }
    while(b.size() < k) b.push_back(0);

    int n1 = 0;
    int p = 1;
    for(int j = k - 1; j >= 0; j--){
        n1 += p * b[j];
        p *= 2;
    }
    return n1;
}

int query ( int it , int k ){
    int p = 1;
    for(int i = 0; i < k; i++) p *= 2;

    if(it + p > n) return 0;

    for(int i = 0; i < p; i++){
        int x = transform( i, k );
        //cout << "i = " << i << " x = " << x << "  v.size() = " << v.size() << endl;
        //if(x > v.size()) return 0;
        if( v[it + x] != v[i + it] ) return 0;
    }
    return 1;
}

Compilation message (stderr)

brperm.cpp: In function 'int transform(int, int)':
brperm.cpp:19:20: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   19 |     while(b.size() < k) b.push_back(0);
      |           ~~~~~~~~~^~~

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