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Submission #574046

# Submission time Handle Problem Language Result Execution time Memory
574046 2022-06-07T15:57:12 Z Stickfish Permutation (APIO22_perm) C++17
100 / 100
 2 ms 340 KB 
#include "perm.h"
#include <algorithm>
using ll = long long;
using namespace std;

const int MAXVAL = 50001;

vector<int> construct_permutation(ll k) {
    int mxlast = MAXVAL;
    int mnlast = -1;
    vector<int> ans;
    while (k > 1) {
        if (k % 2 == 0) {
            ans.push_back(++mnlast);
            k /= 2;
        } else if (k % 3 == 0) {
            ans.push_back(mnlast + 2);
            ans.push_back(mnlast + 1);
            k /= 3;
            mnlast += 2;
        } else if (k % 5 == 0) {
            ans.push_back(mnlast + 3);
            ans.push_back(mnlast + 1);
            ans.push_back(mnlast + 2);
            k /= 5;
            mnlast += 3;
        } else if (k % 23 == 0) {
            //2 3 5 1 6 4
            ans.push_back(mnlast + 2);
            ans.push_back(mnlast + 3);
            ans.push_back(mnlast + 5);
            ans.push_back(mnlast + 1);
            ans.push_back(mnlast + 6);
            ans.push_back(mnlast + 4);
            k /= 23;
            mnlast += 6;
        } else {
            ans.push_back(--mxlast);
            --k;
        }
    }
    vector<int> cmp;
    for (auto x : ans)
        cmp.push_back(x);
    sort(cmp.begin(), cmp.end());
    for (auto& x : ans)
        x = lower_bound(cmp.begin(), cmp.end(), x) - cmp.begin();
    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct

Subtask #2
90.0 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 2 ms 340 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 2 ms 340 KB Output is correct
13 Correct 2 ms 340 KB Output is correct