// teddybear's code
// the one who loves NBP
// noe the second
// goal: 0 / 8
// get medal in APIO (like TKN)
//#pragma GCC optimize("O3,unroll-loops")
//#pragma GCC target("avx2,bmi,bmi2,popcnt,lzcnt")
// prob:
#include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#define FOR(i,n) for (int i = 0; i<n; i++)
using ll = long long;
using ull = unsigned long long;
ll n,m,t;
ll cnt = 0;
const int maxn = 1e5;
const ll mod = 1e9 + 7;
#define Y "YES"
#define N "NO"
ll a[maxn + 5];
bool visited[1005][1005];
int dist[1005][1005];
int w,h;
int fx[4] = {-1, 1, 0, 0};
int fy[4] = {0, 0, -1, 1};
queue <pair<int,int>> q;
void solve()
{
cin >> n;
vector <pair<int,int>> vp;
for (int i = 1; i<=n; i++)
{
cin >> a[i];
}
for (int i = 1; i<=n-1; i++)
{
if (a[i] > a[i+1])
{
swap(a[i], a[i+1]);
vp.push_back({i, i+1});
vp.push_back({i+1, i});
vp.push_back({i, i+1});
}
}
cout << vp.size() << '\n';
for (auto j : vp)
{
cout << j.first << ' ' << j.second << '\n';
}
}
void init()
{
int te = 1; //cin >> te;
while (te--)
{
solve();
}
}
void preprocess()
{
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
//cin.tie(0); cout.tie(0);
//freopen(".inp", "r", stdin);
//freopen(".out", "w", stdout);
init();
preprocess();
//solve();
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
212 KB |
Not sorted |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
212 KB |
Not sorted |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
212 KB |
Not sorted |
| 2 |
Halted |
0 ms |
0 KB |
- |
