답안 #428841

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
428841	2021-06-15T14:48:46 Z	tengiz05	Lamps (JOI19_lamps)	C++17	100 / 100	149 ms	35604 KB

lamp

#include <bits/stdc++.h>
constexpr int N = 1000000;
int dp[N + 1][2][2][2];
int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    int n;
    std::cin >> n;
    std::string a, b;
    std::cin >> a >> b;
    a = "#" + a;
    b = "#" + b;
    // [pos][0][1][xor]
    memset(dp, 0x3f, sizeof dp);
    dp[0][0][0][0] = 0;
    for (int i = 1; i <= n; i++) {
        for (int a0 = 0; a0 < 2; a0++)
            for (int a1 = 0; a1 < 2; a1++)
                for (int xr = 0; xr < 2; xr++) {
                    char t = a[i];
                    if (a0) t = '0';
                    if (a1) t = '1';
                    if (xr) t ^= 1;
                    if (t != b[i]) {
                        continue;
                    }
                    int &ret = dp[i][a0][a1][xr];
                    ret = dp[i - 1][a0][a1][xr];
                    for (int A0 = 0; A0 < 2; A0++) {
                        for (int A1 = 0; A1 < 2; A1++) {
                            for (int XR = 0; XR < 2; XR++) {
                                int cost = dp[i - 1][A0][A1][XR];
                                if (a0 > A0) cost++;
                                if (a1 > A1) cost++;
                                if (xr > XR) cost++;
                                ret = std::min(ret, cost);
                            }
                        }
                    }
                }
    }
    int ans = n;
    for (int a0 = 0; a0 < 2; a0++)
        for (int a1 = 0; a1 < 2; a1++)
            for (int xr = 0; xr < 2; xr++)
                ans = std::min(ans, dp[n][a0][a1][xr]);
    std::cout << ans << "\n";
    return 0;
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	16 ms	31564 KB	Output is correct
2	Correct	14 ms	31564 KB	Output is correct
3	Correct	14 ms	31564 KB	Output is correct
4	Correct	15 ms	31564 KB	Output is correct
5	Correct	15 ms	31564 KB	Output is correct
6	Correct	15 ms	31564 KB	Output is correct
7	Correct	15 ms	31564 KB	Output is correct
8	Correct	14 ms	31564 KB	Output is correct
9	Correct	18 ms	31592 KB	Output is correct
10	Correct	14 ms	31564 KB	Output is correct
11	Correct	15 ms	31564 KB	Output is correct
12	Correct	15 ms	31564 KB	Output is correct
13	Correct	15 ms	31608 KB	Output is correct
14	Correct	17 ms	31552 KB	Output is correct
15	Correct	17 ms	31624 KB	Output is correct
16	Correct	14 ms	31528 KB	Output is correct
17	Correct	17 ms	31628 KB	Output is correct
18	Correct	15 ms	31552 KB	Output is correct
19	Correct	15 ms	31564 KB	Output is correct
20	Correct	14 ms	31564 KB	Output is correct
21	Correct	14 ms	31564 KB	Output is correct
22	Correct	14 ms	31564 KB	Output is correct
23	Correct	14 ms	31548 KB	Output is correct
24	Correct	14 ms	31556 KB	Output is correct
25	Correct	16 ms	31560 KB	Output is correct
26	Correct	17 ms	31540 KB	Output is correct
27	Correct	16 ms	31564 KB	Output is correct
28	Correct	16 ms	31588 KB	Output is correct
29	Correct	14 ms	31564 KB	Output is correct
30	Correct	14 ms	31608 KB	Output is correct
31	Correct	15 ms	31592 KB	Output is correct
32	Correct	15 ms	31604 KB	Output is correct
33	Correct	14 ms	31564 KB	Output is correct
34	Correct	14 ms	31564 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	16 ms	31564 KB	Output is correct
2	Correct	14 ms	31564 KB	Output is correct
3	Correct	14 ms	31564 KB	Output is correct
4	Correct	15 ms	31564 KB	Output is correct
5	Correct	15 ms	31564 KB	Output is correct
6	Correct	15 ms	31564 KB	Output is correct
7	Correct	15 ms	31564 KB	Output is correct
8	Correct	14 ms	31564 KB	Output is correct
9	Correct	18 ms	31592 KB	Output is correct
10	Correct	14 ms	31564 KB	Output is correct
11	Correct	15 ms	31564 KB	Output is correct
12	Correct	15 ms	31564 KB	Output is correct
13	Correct	15 ms	31608 KB	Output is correct
14	Correct	17 ms	31552 KB	Output is correct
15	Correct	17 ms	31624 KB	Output is correct
16	Correct	14 ms	31528 KB	Output is correct
17	Correct	17 ms	31628 KB	Output is correct
18	Correct	15 ms	31552 KB	Output is correct
19	Correct	15 ms	31564 KB	Output is correct
20	Correct	14 ms	31564 KB	Output is correct
21	Correct	14 ms	31564 KB	Output is correct
22	Correct	14 ms	31564 KB	Output is correct
23	Correct	14 ms	31548 KB	Output is correct
24	Correct	14 ms	31556 KB	Output is correct
25	Correct	16 ms	31560 KB	Output is correct
26	Correct	17 ms	31540 KB	Output is correct
27	Correct	16 ms	31564 KB	Output is correct
28	Correct	16 ms	31588 KB	Output is correct
29	Correct	14 ms	31564 KB	Output is correct
30	Correct	14 ms	31608 KB	Output is correct
31	Correct	15 ms	31592 KB	Output is correct
32	Correct	15 ms	31604 KB	Output is correct
33	Correct	14 ms	31564 KB	Output is correct
34	Correct	14 ms	31564 KB	Output is correct
35	Correct	15 ms	31544 KB	Output is correct
36	Correct	14 ms	31564 KB	Output is correct
37	Correct	15 ms	31564 KB	Output is correct
38	Correct	15 ms	31564 KB	Output is correct
39	Correct	15 ms	31564 KB	Output is correct
40	Correct	15 ms	31564 KB	Output is correct
41	Correct	15 ms	31524 KB	Output is correct
42	Correct	17 ms	31608 KB	Output is correct
43	Correct	14 ms	31564 KB	Output is correct
44	Correct	16 ms	31560 KB	Output is correct
45	Correct	15 ms	31544 KB	Output is correct
46	Correct	15 ms	31536 KB	Output is correct
47	Correct	18 ms	31564 KB	Output is correct
48	Correct	16 ms	31620 KB	Output is correct
49	Correct	15 ms	31564 KB	Output is correct
50	Correct	15 ms	31620 KB	Output is correct
51	Correct	15 ms	31560 KB	Output is correct
52	Correct	15 ms	31640 KB	Output is correct
53	Correct	14 ms	31564 KB	Output is correct
54	Correct	14 ms	31596 KB	Output is correct
55	Correct	15 ms	31600 KB	Output is correct
56	Correct	15 ms	31540 KB	Output is correct
57	Correct	15 ms	31564 KB	Output is correct
58	Correct	15 ms	31564 KB	Output is correct

Subtask #3
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	15 ms	31564 KB	Output is correct
2	Correct	14 ms	31596 KB	Output is correct
3	Correct	16 ms	31564 KB	Output is correct
4	Correct	15 ms	31568 KB	Output is correct
5	Correct	15 ms	31600 KB	Output is correct
6	Correct	15 ms	31568 KB	Output is correct
7	Correct	117 ms	33556 KB	Output is correct
8	Correct	120 ms	33588 KB	Output is correct
9	Correct	87 ms	33528 KB	Output is correct
10	Correct	89 ms	33572 KB	Output is correct
11	Correct	87 ms	33528 KB	Output is correct
12	Correct	91 ms	33528 KB	Output is correct
13	Correct	98 ms	33544 KB	Output is correct
14	Correct	91 ms	33568 KB	Output is correct

Subtask #4
49.0 / 49.0

#	결과	실행 시간	메모리	Grader output
1	Correct	16 ms	31564 KB	Output is correct
2	Correct	14 ms	31564 KB	Output is correct
3	Correct	14 ms	31564 KB	Output is correct
4	Correct	15 ms	31564 KB	Output is correct
5	Correct	15 ms	31564 KB	Output is correct
6	Correct	15 ms	31564 KB	Output is correct
7	Correct	15 ms	31564 KB	Output is correct
8	Correct	14 ms	31564 KB	Output is correct
9	Correct	18 ms	31592 KB	Output is correct
10	Correct	14 ms	31564 KB	Output is correct
11	Correct	15 ms	31564 KB	Output is correct
12	Correct	15 ms	31564 KB	Output is correct
13	Correct	15 ms	31608 KB	Output is correct
14	Correct	17 ms	31552 KB	Output is correct
15	Correct	17 ms	31624 KB	Output is correct
16	Correct	14 ms	31528 KB	Output is correct
17	Correct	17 ms	31628 KB	Output is correct
18	Correct	15 ms	31552 KB	Output is correct
19	Correct	15 ms	31564 KB	Output is correct
20	Correct	14 ms	31564 KB	Output is correct
21	Correct	14 ms	31564 KB	Output is correct
22	Correct	14 ms	31564 KB	Output is correct
23	Correct	14 ms	31548 KB	Output is correct
24	Correct	14 ms	31556 KB	Output is correct
25	Correct	16 ms	31560 KB	Output is correct
26	Correct	17 ms	31540 KB	Output is correct
27	Correct	16 ms	31564 KB	Output is correct
28	Correct	16 ms	31588 KB	Output is correct
29	Correct	14 ms	31564 KB	Output is correct
30	Correct	14 ms	31608 KB	Output is correct
31	Correct	15 ms	31592 KB	Output is correct
32	Correct	15 ms	31604 KB	Output is correct
33	Correct	14 ms	31564 KB	Output is correct
34	Correct	14 ms	31564 KB	Output is correct
35	Correct	15 ms	31544 KB	Output is correct
36	Correct	14 ms	31564 KB	Output is correct
37	Correct	15 ms	31564 KB	Output is correct
38	Correct	15 ms	31564 KB	Output is correct
39	Correct	15 ms	31564 KB	Output is correct
40	Correct	15 ms	31564 KB	Output is correct
41	Correct	15 ms	31524 KB	Output is correct
42	Correct	17 ms	31608 KB	Output is correct
43	Correct	14 ms	31564 KB	Output is correct
44	Correct	16 ms	31560 KB	Output is correct
45	Correct	15 ms	31544 KB	Output is correct
46	Correct	15 ms	31536 KB	Output is correct
47	Correct	18 ms	31564 KB	Output is correct
48	Correct	16 ms	31620 KB	Output is correct
49	Correct	15 ms	31564 KB	Output is correct
50	Correct	15 ms	31620 KB	Output is correct
51	Correct	15 ms	31560 KB	Output is correct
52	Correct	15 ms	31640 KB	Output is correct
53	Correct	14 ms	31564 KB	Output is correct
54	Correct	14 ms	31596 KB	Output is correct
55	Correct	15 ms	31600 KB	Output is correct
56	Correct	15 ms	31540 KB	Output is correct
57	Correct	15 ms	31564 KB	Output is correct
58	Correct	15 ms	31564 KB	Output is correct
59	Correct	15 ms	31564 KB	Output is correct
60	Correct	14 ms	31596 KB	Output is correct
61	Correct	16 ms	31564 KB	Output is correct
62	Correct	15 ms	31568 KB	Output is correct
63	Correct	15 ms	31600 KB	Output is correct
64	Correct	15 ms	31568 KB	Output is correct
65	Correct	117 ms	33556 KB	Output is correct
66	Correct	120 ms	33588 KB	Output is correct
67	Correct	87 ms	33528 KB	Output is correct
68	Correct	89 ms	33572 KB	Output is correct
69	Correct	87 ms	33528 KB	Output is correct
70	Correct	91 ms	33528 KB	Output is correct
71	Correct	98 ms	33544 KB	Output is correct
72	Correct	91 ms	33568 KB	Output is correct
73	Correct	111 ms	35444 KB	Output is correct
74	Correct	110 ms	35444 KB	Output is correct
75	Correct	90 ms	35440 KB	Output is correct
76	Correct	90 ms	35564 KB	Output is correct
77	Correct	96 ms	35500 KB	Output is correct
78	Correct	90 ms	35444 KB	Output is correct
79	Correct	103 ms	35544 KB	Output is correct
80	Correct	93 ms	35496 KB	Output is correct
81	Correct	91 ms	35448 KB	Output is correct
82	Correct	94 ms	35604 KB	Output is correct
83	Correct	123 ms	35444 KB	Output is correct
84	Correct	112 ms	35512 KB	Output is correct
85	Correct	94 ms	35444 KB	Output is correct
86	Correct	95 ms	35512 KB	Output is correct
87	Correct	132 ms	35444 KB	Output is correct
88	Correct	111 ms	35512 KB	Output is correct
89	Correct	149 ms	35488 KB	Output is correct
90	Correct	96 ms	35448 KB	Output is correct
91	Correct	106 ms	35444 KB	Output is correct
92	Correct	142 ms	35528 KB	Output is correct
93	Correct	99 ms	35480 KB	Output is correct
94	Correct	104 ms	35572 KB	Output is correct
95	Correct	119 ms	35524 KB	Output is correct
96	Correct	134 ms	35428 KB	Output is correct
97	Correct	108 ms	35572 KB	Output is correct
98	Correct	102 ms	35552 KB	Output is correct
99	Correct	100 ms	35576 KB	Output is correct
100	Correct	113 ms	35544 KB	Output is correct
101	Correct	102 ms	35500 KB	Output is correct
102	Correct	101 ms	35476 KB	Output is correct

답안 #428841

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 41.0 / 41.0

Subtask #3 4.0 / 4.0

Subtask #4 49.0 / 49.0

Subtask #1
6.0 / 6.0

Subtask #2
41.0 / 41.0

Subtask #3
4.0 / 4.0

Subtask #4
49.0 / 49.0