oj.uz

Submission #821421

# Submission time Handle Problem Language Result Execution time Memory
821421 2023-08-11T09:59:49 Z Hanksburger Permutation (APIO22_perm) C++17
84.2 / 100
 5 ms 488 KB 
#include "perm.h"
#include <bits/stdc++.h>
using namespace std;
long long prime[5]={2, 3, 5, 7, 11};
vector<int> construct_permutation(long long k, long long PRIME)
{
    for (long long u=0; u<=PRIME; u++)
    {
        long long v=prime[u];
        if (k%v==0)
        {
            long long cnt=0;
            while (k%v==0)
            {
                k/=v;
                cnt++;
            }
            if (k==1)
            {
                vector<int> res;
                for (long long i=0; i<cnt; i++)
                    for (long long j=v-2; j>=0; j--)
                        res.push_back(i*(v-1)+j);
                return res;
            }
            vector<int> res=construct_permutation(k, PRIME);
            int sz=res.size();
            for (long long j=0; j<cnt; j++)
                for (long long m=v-2; m>=0; m--)
                    res.push_back(j*(v-1)+m+sz);
            return res;
        }
    }
    for (long long i=2, m=1; ; i*=2, m++)
    {
        if (i<k && i*2>k)
        {
            vector<int> res=construct_permutation(k-i+1, PRIME);
            for (long long j=0; j<res.size(); j++)
                res[j]+=m;
            for (long long j=0; j<m; j++)
                res.push_back(j);
            return res;
        }
    }
}
vector<int> construct_permutation(long long k)
{
    vector<int> vec[5];
    long long ind, mn=1e9;
    for (long long i=0; i<5; i++)
    {
        vec[i]=construct_permutation(k, i);
        if (mn>vec[i].size())
        {
            mn=vec[i].size();
            ind=i;
        }
    }
    return vec[ind];
}

Compilation message

perm.cpp: In function 'std::vector<int> construct_permutation(long long int, long long int)':
perm.cpp:39:34: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |             for (long long j=0; j<res.size(); j++)
      |                                 ~^~~~~~~~~~~
perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:54:15: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |         if (mn>vec[i].size())
      |             ~~^~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

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

Subtask #2
74.199999996 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 Partially correct 1 ms 340 KB Partially correct
5 Partially correct 3 ms 340 KB Partially correct
6 Partially correct 3 ms 340 KB Partially correct
7 Partially correct 4 ms 468 KB Partially correct
8 Partially correct 5 ms 488 KB Partially correct
9 Correct 2 ms 340 KB Output is correct
10 Partially correct 5 ms 468 KB Partially correct
11 Partially correct 5 ms 484 KB Partially correct
12 Partially correct 4 ms 468 KB Partially correct
13 Partially correct 4 ms 468 KB Partially correct