Submission #463954

#	Time	Username	Problem	Language	Result	Execution time	Memory
463954		amunduzbaev	Xor Sort (eJOI20_xorsort)	C++14	25 / 100	148 ms	12436 KiB

xorsort

#include "bits/stdc++.h"
using namespace std;

void solve(){
	int n, s; cin>>n>>s;
	vector<int> a(n);
	for(auto& x : a) cin>>x;
	
	vector<array<int, 2>> rr;
	auto swwap = [&](int i){
		rr.push_back({i + 1, i});
		rr.push_back({i, i + 1});
		rr.push_back({i + 1, i});
	}; 
	
	for(int i=0;i<n;i++){
		int p = i;
		for(int j=i+1;j<n;j++){
			if(a[j] < a[p]) p = j;
		}
		
		while(p > i){
			swap(a[p], a[p - 1]);
			swwap(p);
			p--;
		}
	}
	
	cout<<(int)rr.size()<<"\n";
	for(auto x : rr) cout<<x[0]<<" "<<x[1]<<"\n";
}

signed main(){
	ios_base::sync_with_stdio(0); cin.tie(0);
	int t = 1;
	//~ cin>>t;
	while(t--) solve();
}

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