제출 #448715

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
448715		2548631	Knjige (COCI20_knjige)	C++17	50 / 50	4 ms	1036 KiB

Main

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

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pii> vii;
typedef vector<vi> vvi;
typedef vector<vll> vvll;
typedef vector<vii> vvii;

#define fastIO ios::sync_with_stdio(false), cin.tie(NULL)
#define forw(i, l, r) for( int i = (l) ; i < (r) ; i++ )
#define forb(i, r, l) for( int i = (r) ; i >= (l) ; i-- )
#define log2i(x) (64 - __builtin_clzll(1ll * (x)) - 1)
#define numBit(x) (__builtin_popcountll(1ll * (x)))
#define getBit(x, i) ((x) >> (i) & 1)
#define Pi acos(-1.0l)
#define sz(x) int(x.size())
#define mt make_tuple
#define mp make_pair
#define fi first
#define se second
#define pb push_back
#define pf push_front
#define pob pop_back
#define pof pop_front
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define debug(x) cerr << #x << " = " << x << '\n';

const int N = 107;
char C[] = {'L', 'D'};
int n;
int a[N], hand[2] = {-1, -1};
stack<int> shelf[2];
vector<tuple<string, char, char> > ans;

int take(bool h, bool s) {
    ans.pb(mt("UZMI", C[h], C[s]));
    assert(sz(shelf[s]));
    assert(hand[h] == -1);
    int book = shelf[s].top();
    shelf[s].pop();
    hand[h] = book;
    return book;
}

void put(bool h, bool s) {
    ans.pb(mt("STAVI", C[h], C[s]));
    assert(hand[h] != -1);
    shelf[s].push(hand[h]);
    hand[h] = -1;
}

int main() {
    fastIO;
#ifndef ONLINE_JUDGE
    //freopen("test.inp","r",stdin);
    //freopen("test.out","w",stdout);
#endif

    cin >> n;
    forw(i, 0, n) cin >> a[i];
    forb(i, n - 1, 0) shelf[0].push(a[i]);
    sort(a, a + n, greater<int>());

    forw(i, 0, n) take(0, 0), put(0, 1);
    forw(i, 0, n) {
        int num = 0;
        for(; take(0, 1) != a[i]; num++) put(0, 0);
        while(num--) take(1, 0), put(1, 1);
        put(0, 0);
    }

    cout << sz(ans) << '\n';
    for(auto x:ans) {
        string st; char c1, c2;
        tie(st, c1, c2) = x;
        cout << st << ' ' << c1 << ' ' << c2 << '\n';
    }
    return 0;
}

• Subtask 1: 50 / 50