Submission #1020135

#	Time	Username	Problem	Language	Result	Execution time	Memory
1020135		coolboy19521	Xor Sort (eJOI20_xorsort)	C++17	25 / 100	5 ms	1608 KiB

xorsort

#include "bits/stdc++.h"
#define int long long

using namespace std;

const int sz = 155;

int a[sz];

signed main() {
    cin.tie(nullptr)->sync_with_stdio(false);

    int n, s;
    cin >> n >> s;

    for (int i = 1; i <= n; i ++)
        cin >> a[i];

    vector<pair<int,int>> v;

    for (int i = 1; i <= n; i ++)
        for (int j = n-1; i <= j; j --)
            if (a[j+1] < a[j]) {
                v.push_back(make_pair(j, j+1));
                v.push_back(make_pair(j+1, j));
                v.push_back(make_pair(j, j+1));
                swap(a[j], a[j+1]);
            }

    cout << v.size() << '\n';

    for (auto& p : v)
        cout << p.first << ' ' << p.second << '\n';
}

• Subtask 1: 25 / 25
• Subtask 2: 0 / 35
• Subtask 3: 0 / 40