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Submission #605423

# Submission time Handle Problem Language Result Execution time Memory
605423 2022-07-25T17:25:29 Z AugustinasJucas Permutation (APIO22_perm) C++17
91.3333 / 100
 2 ms 384 KB 
#include "perm.h"
#include <bits/stdc++.h>

using namespace std;

vector<int> construct_permutation(long long k) {
    vector<int> init;
    int ind = 0;
    long long liko = 0;
    for(int i = 0; i < 64; i++) {
        long long bus = (1ll << i);
        if(bus > k) {
            // desim i-1 tu.
            for(int j = 0; j < i-1; j++) init.push_back(ind++);
            liko = k - (1ll << (i-1));
            break;
        }
    }
 //   cout << "liko = " << liko << ", popcnt = " << __builtin_popcount(liko) << endl;
    vector<int> ret;
    ind += __builtin_popcountll(liko) - 1;
    for(int i = 0; i < init.size(); i++) {
        if((1ll << i) & liko) {
            ret.push_back(ind);
            ind--;
        }
        ret.push_back(init[i]);
    }
   // cout << "ret = "; for(auto x : ret) cout << x << " ";
    //cout << endl;
    return ret;
}

Compilation message

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:22:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |     for(int i = 0; i < init.size(); i++) {
      |                    ~~^~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

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

Subtask #2
81.333333333 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 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 Partially correct 1 ms 304 KB Partially correct
6 Correct 2 ms 300 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Partially correct 2 ms 384 KB Partially correct
9 Correct 1 ms 340 KB Output is correct
10 Partially correct 2 ms 340 KB Partially correct
11 Partially correct 2 ms 340 KB Partially correct
12 Partially correct 2 ms 340 KB Partially correct
13 Partially correct 2 ms 340 KB Partially correct