Submission #811211

#	Time	Username	Problem	Language	Result	Execution time	Memory
811211		Pring	Sob (COCI19_sob)	C++14	10 / 110	292 ms	7964 KiB

sob

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

#define int long long
typedef pair<int, int> pii;

const int MXN = 1048580, LG = 20;
int n, m;
int a[MXN], b[MXN];

inline int SORT0(int *a, int l, int r, int lg) {
    int L = l, R = r - 1;
    while (true) {
        while (l <= R && a[R] & lg) R--;
        if (l > R) break;
        while ((a[L] & lg) == 0) L++;
        if (L > R) break;
        swap(a[L], a[R]);
    }
    for (int i = l; i < r; i++) {
        if (a[i] & lg) return i;
    }
    return 0;
}

void SORT(int l, int r, int lg) {
    // cout << "SORT " << l << ' ' << r << ' ' << lg << endl;
    if (l + 1 >= r) return;
    int mid = SORT0(a, l, r, lg);
    SORT0(b, l, r, lg);
    SORT(l, mid, lg << 1);
    SORT(mid, r, lg << 1);
}

void solve() {
    cin >> n >> m;
    for (int i = 0; i < n; i++) {
        a[i] = i;
        b[i] = m + i;
    }
    SORT(0, n, 1);
    for (int i = 0; i < n; i++) cout << a[i] << ' ' << b[i] << endl;
}

int32_t main() {
    cin.tie(0) -> sync_with_stdio(false);
    solve();
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 29
• Subtask 3: 0 / 39
• Subtask 4: 0 / 32