Submission #1089525

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1089525	2024-09-16 15:51:35	Has2008	Xor Sort (eJOI20_xorsort)	C++17	100 / 100	64 ms	1500 KiB

xorsort

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#include "bits/stdc++.h"
using namespace std;
#define int long long
#define endl endl
const int mod = 1e9 + 7;
const int maxn = 1e6;
int n, s, arr[maxn];
vector < pair < int, int >> ans;
void s1()
{
    for (int i = n - 1; i >= 0; i--)
    {
        int p = -1;
        for (int j = 0; j <= i; j++)
        {
            if (p == -1 || arr[p] < arr[j]) p = j;
            if (j) ans.push_back({j - 1, j});
        }
        for (int j = p + 1; j <= i; j++) ans.push_back({j, j - 1});
        for (int j = p - 2; j >= 0; j--) ans.push_back({j, j + 1});
        for (int j = p; j + 1 < n; j++) swap(arr[j], arr[j + 1]);
    }
    for (int i = n - 2; i >= 0; --i) ans.push_back({i, i + 1});
}
 
 
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Compilation message (stderr)

xorsort.cpp: In function 'void solve()':
xorsort.cpp:53:9: warning: unused variable 'arr2' [-Wunused-variable]
   53 |     int arr2[n];
      |         ^~~~

• Subtask 1: 25 / 25
• Subtask 2: 35 / 35
• Subtask 3: 40 / 40