Submission #1296568

#TimeUsernameProblemLanguageResultExecution timeMemory
1296568TymondMalnaRISC (COI21_malnarisc)C++20
100 / 100
1 ms584 KiB
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
#define fi first
#define se second
#define vi vector<int>
#define vll vector<long long>
#define pii pair<int, int>
#define pll pair<long long, long long>
#define pb push_back
#define mp make_pair
#define eb emplace_back
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
mt19937_64 rng64(chrono::high_resolution_clock::now().time_since_epoch().count());
inline int rand(int l,int r){return uniform_int_distribution<int>(l, r)(rng);}
inline ll rand(ll l,ll r){return uniform_int_distribution<ll>(l, r)(rng64);}
#ifdef DEBUG
auto&operator<<(auto&o,pair<auto,auto>p){return o<<"("<<p.first<<", "<<p.second<<")";}
auto operator<<(auto&o,auto x)->decltype(x.end(),o){o<<"{";int i=0;for(auto e:x)o<<","+!i++<<e;return o<<"}";}
#define debug(X...)cerr<<"["#X"]: ",[](auto...$){((cerr<<$<<"; "),...)<<endl;}(X)
#else
#define debug(...){}
#endif

struct custom_hash {
    static uint64_t splitmix64(uint64_t x) {
        x += 0x9e3779b97f4a7c15;
        x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
        x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
        return x ^ (x >> 31);
    }

    size_t operator()(uint64_t x) const {
        static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
        return splitmix64(x + FIXED_RANDOM);
    }
};

struct pair_hash{
  size_t operator()(const pair<int,int>&x)const{
    return hash<long long>()(((long long)x.first)^(((long long)x.second)<<32));
  }
};

const int MAXN = 67;
vector<pii> vec[MAXN];
int p2[2 * MAXN];

void display(int x, int y){
    cout << "CMPSWP R" << x << " R" << y << " "; 
}

int Sort(int l, int p, int f, int L){
    if(p <= l){
        return 0;
    }

    int x = p2[p - l + 1];
    for(int i = l; i <= p - x; i++){
        pii add = mp(i, i + x);
        if(f){
            swap(add.fi, add.se);
        }

        vec[L].pb(add);
    }

    return 1 + max(Sort(l, l + x - 1, f, L + 1), Sort(l + x, p, f, L + 1));
}

int solve(int l, int p, int f, int L){
    if(p <= l){
        return 0;
    }
    int mid = (l + p) / 2;
    int add = max(solve(l, mid, 1 - f, L), solve(mid + 1, p, f, L));
    add += Sort(l, p, f, L + add);
    //cerr << l << ' ' << p << ' ' << f << ' ' << add << '\n';
    return add;
}

int main(){
    // ios_base::sync_with_stdio(0);
    // cin.tie(NULL);
    // cout.tie(NULL);
    
    int n;
    cin >> n;
    for(int i = 1; i < 2 * MAXN; i++){
        int xd = 1;
        while(xd * 2 < i){
            xd *= 2;
        }
        p2[i] = xd; 
    }

    int k = solve(1, n, 0, 1);
    cout << k << endl;
    cout.flush();
    for(int i = 1; i <= k; i++){
        for(auto ele : vec[i]){
            display(ele.fi, ele.se);
        }

        cout << endl;
        cout.flush();
    }

    return 0;
}
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