답안 #634414

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
634414	2022-08-24T11:08:41 Z	ParsaEs	Lamps (JOI19_lamps)	C++17	100 / 100	47 ms	15948 KB

lamp

//InTheNameOfGOD
//PRS;)
#pragma GCC optimize("unroll-loops", "O2", "Ofast", "O3")
#pragma GCC target("avx2", "sse", "sse2")
#include <cstdio>
constexpr int MAX_N = 1000000;

int N;
char A[MAX_N + 1], B[MAX_N + 1];

/*
  0: OFF
  1: ON
  2: KEPT
*/
char apply(char a, int y) {
  return (y == 0) ? '0' : (y == 1) ? '1' : a;
}

int dp[MAX_N + 1][3];

int main() {
  scanf("%d%s%s", &N, A, B);
  for (int i = 0; i <= N; ++i) {
    for (int x = 0; x < 3; ++x) {
      dp[i][x] = N + 1;
    }
  }
  dp[0][2] = 0;
  for (int i = 0; i < N; ++i) {
    for (int x = 0; x < 3; ++x) {
      for (int xx = 0; xx < 3; ++xx) {
        int cost = dp[i][x];
        if (x != xx && xx != 2) {
          ++cost;
        }
        if ((i == 0 || apply(A[i - 1], x) == B[i - 1]) &&
            apply(A[i], xx) != B[i]) {
          ++cost;
        }
        if (dp[i + 1][xx] > cost) {
          dp[i + 1][xx] = cost;
        }
      }
    }
  }
  int ans = N + 1;
  for (int x = 0; x < 3; ++x) {
    if (ans > dp[N][x]) {
      ans = dp[N][x];
    }
  }
  printf("%d\n", ans);
  return 0;
}

Compilation message

lamp.cpp: In function 'int main()':
lamp.cpp:23:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |   scanf("%d%s%s", &N, A, B);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	292 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	292 KB	Output is correct
22	Correct	0 ms	340 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	0 ms	212 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	0 ms	212 KB	Output is correct
28	Correct	0 ms	212 KB	Output is correct
29	Correct	0 ms	288 KB	Output is correct
30	Correct	0 ms	212 KB	Output is correct
31	Correct	0 ms	212 KB	Output is correct
32	Correct	0 ms	296 KB	Output is correct
33	Correct	1 ms	216 KB	Output is correct
34	Correct	0 ms	212 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	292 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	292 KB	Output is correct
22	Correct	0 ms	340 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	0 ms	212 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	0 ms	212 KB	Output is correct
28	Correct	0 ms	212 KB	Output is correct
29	Correct	0 ms	288 KB	Output is correct
30	Correct	0 ms	212 KB	Output is correct
31	Correct	0 ms	212 KB	Output is correct
32	Correct	0 ms	296 KB	Output is correct
33	Correct	1 ms	216 KB	Output is correct
34	Correct	0 ms	212 KB	Output is correct
35	Correct	0 ms	292 KB	Output is correct
36	Correct	1 ms	300 KB	Output is correct
37	Correct	0 ms	300 KB	Output is correct
38	Correct	0 ms	220 KB	Output is correct
39	Correct	0 ms	352 KB	Output is correct
40	Correct	1 ms	308 KB	Output is correct
41	Correct	0 ms	224 KB	Output is correct
42	Correct	1 ms	224 KB	Output is correct
43	Correct	1 ms	224 KB	Output is correct
44	Correct	0 ms	224 KB	Output is correct
45	Correct	0 ms	224 KB	Output is correct
46	Correct	1 ms	224 KB	Output is correct
47	Correct	0 ms	308 KB	Output is correct
48	Correct	0 ms	224 KB	Output is correct
49	Correct	0 ms	224 KB	Output is correct
50	Correct	1 ms	224 KB	Output is correct
51	Correct	1 ms	224 KB	Output is correct
52	Correct	0 ms	224 KB	Output is correct
53	Correct	0 ms	224 KB	Output is correct
54	Correct	0 ms	224 KB	Output is correct
55	Correct	0 ms	224 KB	Output is correct
56	Correct	0 ms	224 KB	Output is correct
57	Correct	1 ms	212 KB	Output is correct
58	Correct	1 ms	288 KB	Output is correct

Subtask #3
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	292 KB	Output is correct
4	Correct	0 ms	292 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	36 ms	15880 KB	Output is correct
8	Correct	36 ms	15924 KB	Output is correct
9	Correct	32 ms	15820 KB	Output is correct
10	Correct	37 ms	15948 KB	Output is correct
11	Correct	32 ms	15908 KB	Output is correct
12	Correct	31 ms	15888 KB	Output is correct
13	Correct	31 ms	15852 KB	Output is correct
14	Correct	32 ms	15916 KB	Output is correct

Subtask #4
49.0 / 49.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	292 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	292 KB	Output is correct
22	Correct	0 ms	340 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	0 ms	212 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	0 ms	212 KB	Output is correct
28	Correct	0 ms	212 KB	Output is correct
29	Correct	0 ms	288 KB	Output is correct
30	Correct	0 ms	212 KB	Output is correct
31	Correct	0 ms	212 KB	Output is correct
32	Correct	0 ms	296 KB	Output is correct
33	Correct	1 ms	216 KB	Output is correct
34	Correct	0 ms	212 KB	Output is correct
35	Correct	0 ms	292 KB	Output is correct
36	Correct	1 ms	300 KB	Output is correct
37	Correct	0 ms	300 KB	Output is correct
38	Correct	0 ms	220 KB	Output is correct
39	Correct	0 ms	352 KB	Output is correct
40	Correct	1 ms	308 KB	Output is correct
41	Correct	0 ms	224 KB	Output is correct
42	Correct	1 ms	224 KB	Output is correct
43	Correct	1 ms	224 KB	Output is correct
44	Correct	0 ms	224 KB	Output is correct
45	Correct	0 ms	224 KB	Output is correct
46	Correct	1 ms	224 KB	Output is correct
47	Correct	0 ms	308 KB	Output is correct
48	Correct	0 ms	224 KB	Output is correct
49	Correct	0 ms	224 KB	Output is correct
50	Correct	1 ms	224 KB	Output is correct
51	Correct	1 ms	224 KB	Output is correct
52	Correct	0 ms	224 KB	Output is correct
53	Correct	0 ms	224 KB	Output is correct
54	Correct	0 ms	224 KB	Output is correct
55	Correct	0 ms	224 KB	Output is correct
56	Correct	0 ms	224 KB	Output is correct
57	Correct	1 ms	212 KB	Output is correct
58	Correct	1 ms	288 KB	Output is correct
59	Correct	0 ms	212 KB	Output is correct
60	Correct	0 ms	212 KB	Output is correct
61	Correct	1 ms	292 KB	Output is correct
62	Correct	0 ms	292 KB	Output is correct
63	Correct	0 ms	212 KB	Output is correct
64	Correct	0 ms	212 KB	Output is correct
65	Correct	36 ms	15880 KB	Output is correct
66	Correct	36 ms	15924 KB	Output is correct
67	Correct	32 ms	15820 KB	Output is correct
68	Correct	37 ms	15948 KB	Output is correct
69	Correct	32 ms	15908 KB	Output is correct
70	Correct	31 ms	15888 KB	Output is correct
71	Correct	31 ms	15852 KB	Output is correct
72	Correct	32 ms	15916 KB	Output is correct
73	Correct	33 ms	15872 KB	Output is correct
74	Correct	34 ms	15872 KB	Output is correct
75	Correct	32 ms	15820 KB	Output is correct
76	Correct	29 ms	15920 KB	Output is correct
77	Correct	37 ms	15872 KB	Output is correct
78	Correct	31 ms	15876 KB	Output is correct
79	Correct	33 ms	15912 KB	Output is correct
80	Correct	30 ms	15916 KB	Output is correct
81	Correct	32 ms	15872 KB	Output is correct
82	Correct	33 ms	15908 KB	Output is correct
83	Correct	41 ms	15868 KB	Output is correct
84	Correct	35 ms	15916 KB	Output is correct
85	Correct	36 ms	15920 KB	Output is correct
86	Correct	37 ms	15872 KB	Output is correct
87	Correct	36 ms	15916 KB	Output is correct
88	Correct	39 ms	15920 KB	Output is correct
89	Correct	36 ms	15872 KB	Output is correct
90	Correct	37 ms	15916 KB	Output is correct
91	Correct	37 ms	15924 KB	Output is correct
92	Correct	38 ms	15928 KB	Output is correct
93	Correct	40 ms	15920 KB	Output is correct
94	Correct	41 ms	15924 KB	Output is correct
95	Correct	40 ms	15948 KB	Output is correct
96	Correct	40 ms	15860 KB	Output is correct
97	Correct	41 ms	15920 KB	Output is correct
98	Correct	43 ms	15916 KB	Output is correct
99	Correct	41 ms	15828 KB	Output is correct
100	Correct	43 ms	15916 KB	Output is correct
101	Correct	40 ms	15820 KB	Output is correct
102	Correct	47 ms	15856 KB	Output is correct

답안 #634414

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