Submission #829307

#	Time	Username	Problem	Language	Result	Execution time	Memory
829307		ayankarimova	Xor Sort (eJOI20_xorsort)	C++14	25 / 100	109 ms	18416 KiB

xorsort

#include<bits/stdc++.h>
using namespace std;
#define endl '\n'
#define ll long long
const ll sz=100005;
int main(){

    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    ll n, s;
    cin>>n>>s;
    ll m[n+1];
    for(int i=1; i<=n; i++){
        cin>>m[i];
    }
    vector<pair<ll, ll>>v;
    for(int j=1; j<n; j++){
        for(int i=2; i<=n; i++){
            if(m[i]<=m[i-1]){
                v.push_back({i, i-1});
                v.push_back({i-1, i});
                v.push_back({i, i-1});
                swap(m[i], m[i-1]);
            }
        }
    }
    cout<<v.size()<<endl;
    for(auto i:v){
        cout<<i.first<<' '<<i.second<<endl;
    }
}

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