Submission #308417

#	Time	Username	Problem	Language	Result	Execution time	Memory
308417		kylych03	Unscrambling a Messy Bug (IOI16_messy)	C++14	100 / 100	9 ms	512 KiB

messy

#include <bits/stdc++.h>
#include "messy.h"
using namespace std;
//#include "grader.cpp"
int  N;
vector <int> res;
void add (int l , int r){
    if(l==r)
        return;
    string s;
    for(int i  = 0 ; i < N; i++)
        s=s+'1';
    for(int i = l ; i <= r ;i++)
        s[i]='0';
    int mid = (l+r)/2;
    for( int  i = l ; i <= mid; i++){
        s[i]='1';
        add_element(s);
        s[i]='0';
    }
    add(l, mid);
    add(mid+1, r);
}
void check(int l, int r, vector <int> vec){
    if(l==r){
         res[vec[0]] = l;
         return  ;
    }
    string s;
    vector <int> left, right;
    for(int i  = 0 ; i < N; i++)
        s=s+'1';
    for(int i = 0 ; i <vec.size() ;i++)
        s[vec[i]]='0';
    int mid  = (l + r)  / 2;

    for(int i = l ; i <= r; i++){
        s[vec[i-l]]='1';
        if(check_element(s)){
            left.push_back(vec[i-l]);
        }
        else
            right.push_back(vec[i-l]);
        s[vec[i-l]]='0';
    }
    check(l, mid,left);
    check( mid+1, r, right);
}
vector <int> restore_permutation(int n, int w, int r) {

    N = n;
    add(0, n-1);
    compile_set();
    vector <int > vec;
    vec.resize(n);
    res.resize(n);
    for(int i = 0 ; i < n; i++)
        vec[i] = i;
    check( 0, n-1, vec);
    return res;
}

Compilation message (stderr)

messy.cpp: In function 'void check(int, int, std::vector<int>)':
messy.cpp:34:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |     for(int i = 0 ; i <vec.size() ;i++)
      |                     ~~^~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 18 / 18
• Subtask 3: 11 / 11
• Subtask 4: 21 / 21
• Subtask 5: 30 / 30