oj.uz

답안 #249822

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
249822 2020-07-15T21:25:11 Z Tc14 건물 4 (JOI20_building4) C++17
100 / 100
 351 ms 28152 KB 
//#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define ve vector
typedef long long ll;
typedef pair<int, int> pii;
const int INF = 1e9 + 10;

int main() {

    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int n, r, v;
    ve<int> A, B;
    ve<pii> Ap, Bp;
    ve<bool> Sol;

    cin >> n;
    A = ve<int>(2 * n);
    B = ve<int>(2 * n);
    Ap = ve<pii>(2 * n, { INF, -INF });
    Bp = ve<pii>(2 * n, { INF, -INF });
    Sol = ve<bool>(2 * n);

    for (int i = 0; i < 2 * n; i++) cin >> A[i];
    for (int i = 0; i < 2 * n; i++) cin >> B[i];

    Ap[0] = {1, 1};
    Bp[0] = {0, 0};

    for (int i = 1; i < 2 * n; i++) {

        if (A[i - 1] <= A[i]) {
            Ap[i] = {min(Ap[i].first, Ap[i - 1].first), max(Ap[i].second, Ap[i - 1].second)};
        }
        if (B[i - 1] <= A[i]) {
            Ap[i] = {min(Ap[i].first, Bp[i - 1].first), max(Ap[i].second, Bp[i - 1].second)};
        }

        if (A[i - 1] <= B[i]) {
            Bp[i] = {min(Bp[i].first, Ap[i - 1].first), max(Bp[i].second, Ap[i - 1].second)};
        }
        if (B[i - 1] <= B[i]) {
            Bp[i] = {min(Bp[i].first, Bp[i - 1].first), max(Bp[i].second, Bp[i - 1].second)};
        }

        if (Ap[i].first != INF) {
            Ap[i].first++;
            Ap[i].second++;
        }
    }

    if (Ap[2 * n - 1].first <= n && n <= Ap[2 * n - 1].second) r = 0;
    else if (Bp[2 * n - 1].first <= n && n <= Bp[2 * n - 1].second) r = 1;
    else r = -1;

    if (r == -1) cout << -1 << endl;
    else {
        Sol[2 * n - 1] = r;
        v = n;
        for (int i = 2 * n - 2; i >= 0; i--) {
            if (r == 0) {
                v--;
                if (A[i] <= A[i + 1] && Ap[i].first <= v && v <= Ap[i].second) r = 0;
                else r = 1;
            }
            else {
                if (A[i] <= B[i + 1] && Ap[i].first <= v && v <= Ap[i].second) r = 0;
                else r = 1;
            }
            Sol[i] = r;
        }

        for (int i = 0; i < 2 * n; i++) {
            if (Sol[i] == 0) cout << "A";
            else cout << "B";
        }
        cout << endl;
    }

    return 0;
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 544 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 2 ms 512 KB Output is correct
8 Correct 2 ms 512 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 1 ms 512 KB Output is correct
11 Correct 2 ms 512 KB Output is correct
12 Correct 2 ms 512 KB Output is correct
13 Correct 2 ms 512 KB Output is correct
14 Correct 2 ms 512 KB Output is correct
15 Correct 2 ms 512 KB Output is correct
16 Correct 2 ms 512 KB Output is correct
17 Correct 2 ms 512 KB Output is correct
18 Correct 2 ms 512 KB Output is correct
19 Correct 2 ms 512 KB Output is correct
20 Correct 2 ms 512 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 1 ms 512 KB Output is correct
23 Correct 1 ms 512 KB Output is correct
24 Correct 2 ms 512 KB Output is correct
25 Correct 1 ms 512 KB Output is correct
26 Correct 1 ms 512 KB Output is correct
27 Correct 1 ms 512 KB Output is correct
28 Correct 1 ms 512 KB Output is correct
29 Correct 1 ms 512 KB Output is correct
30 Correct 1 ms 512 KB Output is correct
31 Correct 1 ms 512 KB Output is correct
32 Correct 1 ms 512 KB Output is correct
33 Correct 1 ms 512 KB Output is correct

Subtask #2
89.0 / 89.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 544 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 2 ms 512 KB Output is correct
8 Correct 2 ms 512 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 1 ms 512 KB Output is correct
11 Correct 2 ms 512 KB Output is correct
12 Correct 2 ms 512 KB Output is correct
13 Correct 2 ms 512 KB Output is correct
14 Correct 2 ms 512 KB Output is correct
15 Correct 2 ms 512 KB Output is correct
16 Correct 2 ms 512 KB Output is correct
17 Correct 2 ms 512 KB Output is correct
18 Correct 2 ms 512 KB Output is correct
19 Correct 2 ms 512 KB Output is correct
20 Correct 2 ms 512 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 1 ms 512 KB Output is correct
23 Correct 1 ms 512 KB Output is correct
24 Correct 2 ms 512 KB Output is correct
25 Correct 1 ms 512 KB Output is correct
26 Correct 1 ms 512 KB Output is correct
27 Correct 1 ms 512 KB Output is correct
28 Correct 1 ms 512 KB Output is correct
29 Correct 1 ms 512 KB Output is correct
30 Correct 1 ms 512 KB Output is correct
31 Correct 1 ms 512 KB Output is correct
32 Correct 1 ms 512 KB Output is correct
33 Correct 1 ms 512 KB Output is correct
34 Correct 308 ms 24096 KB Output is correct
35 Correct 310 ms 23672 KB Output is correct
36 Correct 303 ms 23416 KB Output is correct
37 Correct 309 ms 23756 KB Output is correct
38 Correct 301 ms 23800 KB Output is correct
39 Correct 306 ms 23800 KB Output is correct
40 Correct 321 ms 25336 KB Output is correct
41 Correct 314 ms 24184 KB Output is correct
42 Correct 329 ms 24696 KB Output is correct
43 Correct 342 ms 25464 KB Output is correct
44 Correct 330 ms 25464 KB Output is correct
45 Correct 351 ms 25388 KB Output is correct
46 Correct 332 ms 25472 KB Output is correct
47 Correct 317 ms 25592 KB Output is correct
48 Correct 321 ms 25592 KB Output is correct
49 Correct 324 ms 25464 KB Output is correct
50 Correct 324 ms 25464 KB Output is correct
51 Correct 317 ms 25464 KB Output is correct
52 Correct 196 ms 26360 KB Output is correct
53 Correct 204 ms 26360 KB Output is correct
54 Correct 206 ms 26360 KB Output is correct
55 Correct 192 ms 26448 KB Output is correct
56 Correct 316 ms 25464 KB Output is correct
57 Correct 278 ms 27896 KB Output is correct
58 Correct 280 ms 28152 KB Output is correct
59 Correct 270 ms 28028 KB Output is correct
60 Correct 263 ms 26492 KB Output is correct
61 Correct 292 ms 28024 KB Output is correct
62 Correct 287 ms 27640 KB Output is correct
63 Correct 286 ms 28152 KB Output is correct
64 Correct 272 ms 27128 KB Output is correct
65 Correct 285 ms 28024 KB Output is correct