oj.uz

Submission #579842

# Submission time Handle Problem Language Result Execution time Memory
579842 2022-06-20T05:42:59 Z drdilyor Xor Sort (eJOI20_xorsort) C++17
0 / 100
 1 ms 212 KB 
#if defined(ONPC) && !defined(_GLIBCXX_ASSERTIONS)
    #define _GLIBCXX_ASSERTIONS
#endif
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/detail/standard_policies.hpp>
#ifdef ONPC
    #include "t_debug.cpp"
#else
    #define debug(...) 42
#endif
#define allit(a) (a).begin(), (a).end()
#define sz(a) ((int) (a).size())

using namespace std;
using ll = long long;
using vi = vector<int>;
namespace pd = __gnu_pbds;
template<typename K>
using ordered_set = pd::tree<K, pd::null_type, less<int>, pd::rb_tree_tag, pd::tree_order_statistics_node_update>;
template<typename... T>
using gp_hash_table = pd::gp_hash_table<T...>;//simple using statement gives warnings

const int INF = 1e9;
const ll INFL = 1e18;
const int N = 1e5;
const int RANDOM = chrono::high_resolution_clock::now().time_since_epoch().count();
mt19937 rng(RANDOM);

int solve() {
    int n, s; cin >> n >> s;
    vi a(n); for (auto& i : a) cin >> i;
    vector<pair<int,int>> res;

    for (int round = 0; round < n; round++) {
        for (int i = n-2; i >= 0; i--) {
            if (! (s == 1 ? a[i] < a[i+1] : a[i] <= a[i+1]) ) {
                res.emplace_back(i, i+1);
                res.emplace_back(i+1, i);
                res.emplace_back(i, i+1);
                a[i] ^= a[i+1];
                a[i+1] ^= a[i];
                a[i] ^= a[i+1];
            }
        }
    }

#ifdef ONPC
    debug(a);
    for (int i = 1; i < n; i++) {
        assert(s == 1 ? a[i-1] < a[i] : a[i-1] <= a[i]);
    }
#else
    for (auto [i, j] : res) cout << i+1 << ' ' << j+1 << '\n';
#endif
    return 0;
}

signed main() {
    cin.tie(0)->sync_with_stdio(0);
    int t = 1;
#ifdef ONPC
    cin >> t;
#endif
    while (t-- && cin) {
        if (solve()) break;
        #ifdef ONPC
            cout << "____________________" << endl;
        #endif
    }
    return 0;
}

Subtask #1
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Not adjacent
2 Halted 0 ms 0 KB -

Subtask #2
0 / 35.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Not adjacent
2 Halted 0 ms 0 KB -

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Not adjacent
2 Halted 0 ms 0 KB -