Submission #976262

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
976262	2024-05-06 11:16:32	Unforgettablepl	Permutation (APIO22_perm)	C++17	91.33 / 100	3 ms	600 KiB

perm

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#pragma GCC optimize("Ofast,unroll-loops")
#include <bits/stdc++.h>
using namespace std;
#define int long long
std::vector<int32_t> construct_permutation(long long k){
    vector<int32_t> ans;
    if(k&1){
        ans.emplace_back(-1);
        k--;
    }
    for(int bit=1;bit<=64 and k;bit++) {
        ans.emplace_back(bit-1);
        if (k & (1ll << bit)){
            ans.emplace_back(-1);
            k -= (1ll << bit);
        }
    }
    ans.erase(--ans.end());
    int curr = ans.back();
    reverse(ans.begin(), ans.end());
    for(int32_t &i:ans)if(i==-1)i=++curr;
    reverse(ans.begin(), ans.end());
    return ans;
}
//static long long MX=1e18;
//
//static bool check_permutation(vector<int32_t> v)
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

• Subtask 1: 10 / 10
• Subtask 2: 81.333333333 / 90