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답안 #833254

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
833254 2023-08-22T03:45:19 Z maomao90 Monster Game (JOI21_monster) C++17
89 / 100
 100 ms 300 KB 
// Hallelujah, praise the one who set me free
// Hallelujah, death has lost its grip on me
// You have broken every chain, There's salvation in your name
// Jesus Christ, my living hope
#include <bits/stdc++.h> 
#include "monster.h"
using namespace std;

#define REP(i, s, e) for (int i = (s); i < (e); i++)
#define RREP(i, s, e) for (int i = (s); i >= (e); i--)
template <class T>
inline bool mnto(T& a, T b) {return a > b ? a = b, 1 : 0;}
template <class T>
inline bool mxto(T& a, T b) {return a < b ? a = b, 1: 0;}

typedef unsigned long long ull;
typedef long long ll;
typedef long double ld;
#define FI first
#define SE second
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
typedef tuple<int, int, int> iii;
#define ALL(_a) _a.begin(), _a.end()
#define SZ(_a) (int) _a.size()
#define pb push_back
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ii> vii;
typedef vector<iii> viii;

#ifndef DEBUG
#define cerr if (0) cerr
#endif

const int INF = 1000000005;
const ll LINF = 1000000000000000005ll;
const int MAXN = 1005;


namespace {
    int n;
    vi p, op;
    int tmp[MAXN];
    bool res[MAXN];
    void dnc(int l, int r) {
        if (l == r) {
            return;
        }
        int m = l + r >> 1;
        dnc(l, m); dnc(m + 1, r);
        int pl = l, pr = m + 1;
        int ptr = l;
        while (pl <= m || pr <= r) {
            if (pr > r || (pl <= m && !Query(p[pl], p[pr]))) {
                tmp[ptr++] = p[pl++];
            } else {
                tmp[ptr++] = p[pr++];
            }
        }
        REP (i, l, r + 1) {
            p[i] = tmp[i];
        }
    }
}

vi Solve(int N) {
    n = N;
    p = vi(n);
    iota(ALL(p), 0);
    dnc(0, n - 1);
    vi bad;
    REP (i, 1, n) {
        res[i] = Query(p[0], p[i]);
        if (res[i]) {
            bad.pb(i);
        }
    }
    bool s0 = res[1];
    if (SZ(bad) == 1 && res[1] == 0) {
        /*
        int cnt = 0;
        REP (i, 1, n) {
            if (i == bad[0]) {
                continue;
            }
            cnt += Query(p[bad[0]], p[i]);
        }
        */
        //if (cnt == 2) {
        if (bad[0] > 2) {
            if (!Query(p[1], p[bad[0]])) {
                swap(p[0], p[1]);
            }
        } else {
            int cnt = 0;
            REP (i, 1, n) {
                if (i == bad[0]) {
                    continue;
                }
                cnt += Query(p[bad[0]], p[i]);
            }
            if (cnt == 2) {
                swap(p[0], p[1]);
            }
        }
        //assert(cnt <= 2);
        s0 = 1;
    }
    if (!s0) {
        assert(res[1] == 0);
        int prv = 1;
        vi v;
        REP (i, 2, n) {
            if (res[i] != res[i - 1]) {
                v.pb(prv);
                prv = i;
            }
        }
        v.pb(prv);
        assert(SZ(v) >= 2);
        if (SZ(v) >= 4) {
            reverse(p.begin(), p.begin() + v[2]);
        } else if ((SZ(v) == 2 ? n : v[2]) - v[1] == 1) {
            swap(p[0], p[1]);
        } else {
            reverse(p.begin(), p.begin() + v[2] - 1);
        }
    }
    REP (i, 0, n - 1) {
        if (Query(p[i], p[i + 1])) {
            continue;
        }
        int id = -1;
        REP (j, i + 1, n) {
            if (Query(p[i], p[j])) {
                id = j;
                break;
            }
        }
        assert(id != -1);
        reverse(p.begin() + i + 1, p.begin() + id + 1);
        i = id - 1;
    }
    vi t(n);
    REP (i, 0, n) {
        t[p[i]] = i;
    }
    return t;
}

Compilation message

monster.cpp: In function 'void {anonymous}::dnc(int, int)':
monster.cpp:51:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   51 |         int m = l + r >> 1;
      |                 ~~^~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 0 ms 208 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 0 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 0 ms 208 KB Output is correct
15 Correct 0 ms 208 KB Output is correct
16 Correct 10 ms 208 KB Output is correct
17 Correct 10 ms 208 KB Output is correct
18 Correct 6 ms 208 KB Output is correct
19 Correct 12 ms 208 KB Output is correct
20 Correct 10 ms 208 KB Output is correct
21 Correct 0 ms 208 KB Output is correct
22 Correct 0 ms 208 KB Output is correct
23 Correct 0 ms 208 KB Output is correct
24 Correct 0 ms 208 KB Output is correct
25 Correct 1 ms 208 KB Output is correct
26 Correct 11 ms 208 KB Output is correct
27 Correct 0 ms 208 KB Output is correct
28 Correct 0 ms 208 KB Output is correct
29 Correct 0 ms 208 KB Output is correct
30 Correct 0 ms 208 KB Output is correct
31 Correct 0 ms 208 KB Output is correct
32 Correct 6 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 0 ms 208 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 0 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 0 ms 208 KB Output is correct
15 Correct 0 ms 208 KB Output is correct
16 Correct 10 ms 208 KB Output is correct
17 Correct 10 ms 208 KB Output is correct
18 Correct 6 ms 208 KB Output is correct
19 Correct 12 ms 208 KB Output is correct
20 Correct 10 ms 208 KB Output is correct
21 Correct 0 ms 208 KB Output is correct
22 Correct 0 ms 208 KB Output is correct
23 Correct 0 ms 208 KB Output is correct
24 Correct 0 ms 208 KB Output is correct
25 Correct 1 ms 208 KB Output is correct
26 Correct 11 ms 208 KB Output is correct
27 Correct 0 ms 208 KB Output is correct
28 Correct 0 ms 208 KB Output is correct
29 Correct 0 ms 208 KB Output is correct
30 Correct 0 ms 208 KB Output is correct
31 Correct 0 ms 208 KB Output is correct
32 Correct 6 ms 208 KB Output is correct
33 Correct 100 ms 292 KB Output is correct
34 Correct 69 ms 284 KB Output is correct
35 Correct 85 ms 284 KB Output is correct
36 Correct 67 ms 300 KB Output is correct
37 Correct 79 ms 288 KB Output is correct
38 Correct 93 ms 284 KB Output is correct
39 Correct 71 ms 208 KB Output is correct
40 Correct 57 ms 288 KB Output is correct
41 Correct 98 ms 284 KB Output is correct
42 Correct 96 ms 288 KB Output is correct
43 Correct 54 ms 284 KB Output is correct
44 Correct 65 ms 208 KB Output is correct

Subtask #3
64.0 / 75.0

# 결과 실행 시간 메모리 Grader output
1 Partially correct 87 ms 288 KB Partially correct
2 Partially correct 56 ms 292 KB Partially correct
3 Partially correct 59 ms 292 KB Partially correct
4 Partially correct 43 ms 288 KB Partially correct
5 Partially correct 82 ms 284 KB Partially correct
6 Correct 50 ms 288 KB Output is correct
7 Correct 82 ms 284 KB Output is correct
8 Partially correct 50 ms 292 KB Partially correct
9 Partially correct 90 ms 288 KB Partially correct
10 Partially correct 91 ms 292 KB Partially correct
11 Partially correct 72 ms 288 KB Partially correct
12 Partially correct 59 ms 292 KB Partially correct
13 Correct 77 ms 288 KB Output is correct
14 Correct 74 ms 288 KB Output is correct
15 Correct 38 ms 288 KB Output is correct
16 Correct 41 ms 284 KB Output is correct
17 Partially correct 77 ms 284 KB Partially correct
18 Correct 55 ms 208 KB Output is correct