Submission #268308

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
268308	2020-08-16T11:06:16 Z	imeimi2000	Travelling Salesperson (CCO20_day2problem1)	C++17	25 / 25	590 ms	24316 KB

Main

#include <bits/stdc++.h>

using namespace std;

int n;
char E[2001][2001];

void solve(int x) {
    vector<int> R(1, x), B(1, x);
    for (int i = 1; i <= n; ++i) {
        if (i == x) continue;
        if (E[R.back()][i] == 'R') {
            B.pop_back();
            if (B.empty() || E[B.back()][i] == 'B') {
                if (B.empty() && R[0] != x && R.back() == x) {
                    reverse(R.begin(), R.end());
                    B.push_back(R.back());
                    --i;
                    continue;
                }
                R.push_back(i);
                B.push_back(i);
            }
            else {
                R.push_back(i);
                R.push_back(B.back());
            }
        }
        else {
            R.pop_back();
            if (R.empty() || E[R.back()][i] == 'R') {
                if (R.empty() && B[0] != x && B.back() == x) {
                    reverse(B.begin(), B.end());
                    R.push_back(B.back());
                    --i;
                    continue;
                }
                R.push_back(i);
                B.push_back(i);
            }
            else {
                B.push_back(i);
                B.push_back(R.back());
            }
        }
    }
    if (R[0] != x) swap(R, B);
    for (int i : R) printf("%d ", i);
    B.pop_back();
    reverse(B.begin(), B.end());
    for (int i : B) printf("%d ", i);
    printf("\n");
}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> n;
    for (int i = 2; i <= n; ++i) {
        cin >> E[i] + 1;
        for (int j = 1; j < i; ++j) {
            E[j][i] = E[i][j];
        }
    }
    for (int i = 1; i <= n; ++i) {
        printf("%d\n", n);
        solve(i);
    }
    return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:59:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   59 |         cin >> E[i] + 1;
      |                ~~~~~^~~

Subtask #1

25.0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	0 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	0 ms	384 KB	Output is correct
13	Correct	0 ms	384 KB	Output is correct
14	Correct	1 ms	396 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct
16	Correct	470 ms	24056 KB	Output is correct
17	Correct	551 ms	24184 KB	Output is correct
18	Correct	1 ms	384 KB	Output is correct
19	Correct	469 ms	23928 KB	Output is correct
20	Correct	473 ms	24184 KB	Output is correct
21	Correct	1 ms	384 KB	Output is correct
22	Correct	462 ms	24000 KB	Output is correct
23	Correct	506 ms	23928 KB	Output is correct
24	Correct	3 ms	512 KB	Output is correct
25	Correct	586 ms	23928 KB	Output is correct
26	Correct	502 ms	24260 KB	Output is correct
27	Correct	37 ms	2344 KB	Output is correct
28	Correct	509 ms	24244 KB	Output is correct
29	Correct	469 ms	23992 KB	Output is correct
30	Correct	469 ms	24312 KB	Output is correct
31	Correct	478 ms	24128 KB	Output is correct
32	Correct	467 ms	24056 KB	Output is correct
33	Correct	470 ms	24184 KB	Output is correct
34	Correct	464 ms	24056 KB	Output is correct
35	Correct	473 ms	24056 KB	Output is correct
36	Correct	481 ms	24076 KB	Output is correct
37	Correct	477 ms	23912 KB	Output is correct
38	Correct	479 ms	24184 KB	Output is correct
39	Correct	524 ms	23872 KB	Output is correct
40	Correct	509 ms	24116 KB	Output is correct
41	Correct	472 ms	23928 KB	Output is correct
42	Correct	470 ms	24020 KB	Output is correct
43	Correct	490 ms	24080 KB	Output is correct
44	Correct	491 ms	24052 KB	Output is correct
45	Correct	465 ms	24056 KB	Output is correct
46	Correct	516 ms	24000 KB	Output is correct
47	Correct	477 ms	24312 KB	Output is correct
48	Correct	466 ms	24316 KB	Output is correct
49	Correct	474 ms	24048 KB	Output is correct
50	Correct	469 ms	24108 KB	Output is correct
51	Correct	514 ms	24076 KB	Output is correct
52	Correct	478 ms	24056 KB	Output is correct
53	Correct	481 ms	24056 KB	Output is correct
54	Correct	541 ms	24056 KB	Output is correct
55	Correct	501 ms	24156 KB	Output is correct
56	Correct	501 ms	24052 KB	Output is correct
57	Correct	497 ms	24184 KB	Output is correct
58	Correct	500 ms	24312 KB	Output is correct
59	Correct	479 ms	24144 KB	Output is correct
60	Correct	506 ms	24104 KB	Output is correct
61	Correct	523 ms	24312 KB	Output is correct
62	Correct	479 ms	24184 KB	Output is correct
63	Correct	513 ms	24056 KB	Output is correct
64	Correct	503 ms	24144 KB	Output is correct
65	Correct	494 ms	24180 KB	Output is correct
66	Correct	506 ms	24312 KB	Output is correct
67	Correct	488 ms	24056 KB	Output is correct
68	Correct	468 ms	24056 KB	Output is correct
69	Correct	484 ms	24184 KB	Output is correct
70	Correct	563 ms	24184 KB	Output is correct
71	Correct	506 ms	24192 KB	Output is correct
72	Correct	520 ms	24312 KB	Output is correct
73	Correct	517 ms	24116 KB	Output is correct
74	Correct	564 ms	24028 KB	Output is correct
75	Correct	511 ms	24056 KB	Output is correct
76	Correct	480 ms	24056 KB	Output is correct
77	Correct	473 ms	24180 KB	Output is correct
78	Correct	488 ms	24184 KB	Output is correct
79	Correct	489 ms	24184 KB	Output is correct
80	Correct	484 ms	24184 KB	Output is correct
81	Correct	503 ms	24184 KB	Output is correct
82	Correct	514 ms	24056 KB	Output is correct
83	Correct	487 ms	24056 KB	Output is correct
84	Correct	521 ms	24056 KB	Output is correct
85	Correct	503 ms	24136 KB	Output is correct
86	Correct	526 ms	24092 KB	Output is correct
87	Correct	38 ms	2424 KB	Output is correct
88	Correct	44 ms	2424 KB	Output is correct
89	Correct	499 ms	24036 KB	Output is correct
90	Correct	476 ms	24088 KB	Output is correct
91	Correct	30 ms	2424 KB	Output is correct
92	Correct	33 ms	2424 KB	Output is correct
93	Correct	590 ms	24176 KB	Output is correct
94	Correct	503 ms	24228 KB	Output is correct
95	Correct	43 ms	2424 KB	Output is correct
96	Correct	31 ms	2432 KB	Output is correct
97	Correct	492 ms	24052 KB	Output is correct
98	Correct	500 ms	24108 KB	Output is correct