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Submission #982881

# Submission time Handle Problem Language Result Execution time Memory
982881 2024-05-14T22:21:41 Z vjudge1 Permutation (APIO22_perm) C++17
91.3333 / 100
 2 ms 348 KB 
#include <bits/stdc++.h>
using namespace std;

vector <int> construct_permutation(long long k) {

    k--;

    vector <int> arr;

    for (long long i = 1, j = 0; k; j++ , i*= 2) {
        if (k % 2 == 1) {
            arr.push_back(1);
            k /= 2;
        } else {
            arr.push_back(2);
            k -= 2;
            k /= 2;
        }
    }


    //for(auto it: arr) cout<<it<<' ';

    int x = 0;

    for(int i=0; i<arr.size(); i++, x++)
            if(arr[i] == 2) x++;

    vector <int> ans(x);

    for(int j=0, k=x-1, l=0, p = 0; j<x; j++, p++){

        if(arr[p] == 1){
            ans[j] = l;
            l++;
        } else {
            ans[j] = k;
            ans[j+1] = l;
            k--;
            l++;
            j++;
        }

    }

    return ans;

}

Compilation message

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:27:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for(int i=0; i<arr.size(); i++, x++)
      |                  ~^~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct

Subtask #2
81.333333333 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Partially correct 1 ms 348 KB Partially correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Partially correct 2 ms 348 KB Partially correct
9 Correct 1 ms 348 KB Output is correct
10 Partially correct 2 ms 348 KB Partially correct
11 Partially correct 2 ms 348 KB Partially correct
12 Partially correct 1 ms 344 KB Partially correct
13 Partially correct 1 ms 348 KB Partially correct