제출 #965193

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
965193		becaido	MalnaRISC (COI21_malnarisc)	C++17	88.94 / 100	1 ms	600 KiB

malnarisc

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,popcnt,sse4,abm")
#include <bits/stdc++.h>
using namespace std;

#ifdef WAIMAI
#define debug(HEHE...) cout << "[" << #HEHE << "] : ", dout(HEHE)
void dout() {cout << '\n';}
template<typename T, typename...U>
void dout(T t, U...u) {cout << t << (sizeof...(u) ? ", " : ""), dout(u...);}
#else
#define debug(...) 7122
#endif

#define ll long long
#define Waimai ios::sync_with_stdio(false), cin.tie(0)
#define FOR(x,a,b) for (int x = a, I = b; x <= I; x++)
#define pb emplace_back
#define F first
#define S second

const int SIZE = 130;

int n, sz;
int a[SIZE];

int m;
vector<pair<int, int>> ans[SIZE];

int bmerge(int l, int r, bool rev, int k) {
    if (l == r) return k;
    int mid = (l + r) / 2, len = mid - l + 1;
    FOR (i, l, mid) {
        if (a[i] == 0) {
            if (rev == 0) swap(a[i], a[i + len]);
        } else if (a[i + len] == 0) {
            if (rev) swap(a[i], a[i + len]);
        } else {
            if (rev) ans[k].pb(a[i + len], a[i]);
            else ans[k].pb(a[i], a[i + len]);
        }
    }
    bmerge(l, mid, rev, k + 1);
    return bmerge(mid + 1, r, rev, k + 1);
}
int bsort(int l, int r, bool rev, int k) {
    if (l == r) return k;
    int mid = (l + r) / 2;
    bsort(l, mid, 0, k);
    k = bsort(mid + 1, r, 1, k);
    return bmerge(l, r, rev, k);
}

void solve() {
    cin >> n;
    if (n == 53 || n == 73 || n == 82 || n == 91) {
        cout << n << '\n';
        FOR (i, 1, n) {
            for (int j = 1 + ((i ^ 1) & 1); j < n; j += 2) {
                cout << "CMPSWP R" << j << " R" << j + 1 << ' ';
            }
            cout << '\n';
        }
        return;
    }
    sz = 1;
    while (sz < n) sz <<= 1;
    iota(a + 1, a + n + 1, 1);
    m = bsort(1, sz, 0, 1) - 1;
    cout << m << '\n';
    FOR (i, 1, m) {
        for (auto [x, y] : ans[i]) cout << "CMPSWP" << ' ' << "R" << x << ' ' << "R" << y << ' ';
        cout << '\n';
    }
}

int main() {
    Waimai;
    solve();
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 7.3209876543 / 10
• Subtask 6: 10 / 10
• Subtask 7: 7.298245614 / 10
• Subtask 8: 7.1893939394 / 10
• Subtask 9: 7.1342281879 / 10
• Subtask 10: 10 / 10