oj.uz

Submission #173387

# Submission time Handle Problem Language Result Execution time Memory
173387 2020-01-03T23:55:25 Z ZwariowanyMarcin Lamps (JOI19_lamps) C++14
100 / 100
 35 ms 16040 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define mp make_pair
#define ss(x) (int) x.size()
#define pb push_back
#define ll long long
#define cat(x) cerr << #x << " = " << x << endl
#define FOR(i, n) for(int i = 0; i < n; ++i)

using namespace std;	

const int nax = 1e6 + 111;

void mini(int &a, int b) {
	a = min(a, b);
}

int n;
char a[nax];
char b[nax];

int t[nax][3];
			
int main() {
	a[0] = b[0] = '#';
	scanf("%d", &n);
	scanf("%s", a + 1);
	scanf("%s", b + 1);
	
	t[0][0] = 0;
	t[0][1] = n;
	t[0][2] = n;
	
	for(int i = 1; i <= n; ++i) {
		t[i][0] = t[i][1] = t[i][2] = n;
		// 0
		mini(t[i][0], t[i - 1][0] + (a[i] != b[i] && a[i - 1] == b[i - 1]));
		mini(t[i][0], t[i - 1][1] + (a[i] != b[i] && b[i - 1] == '1'));
		mini(t[i][0], t[i - 1][2] + (a[i] != b[i] && b[i - 1] == '0'));
		// 1
		mini(t[i][1], t[i - 1][0] + 1 + (b[i] == '0' && a[i - 1] == b[i - 1]));
		mini(t[i][1], t[i - 1][1] + (b[i] == '0' && b[i - 1] == '1'));
		// 2
		mini(t[i][2], t[i - 1][0] + 1 + (b[i] == '1' && a[i - 1] == b[i - 1]));
		mini(t[i][2], t[i - 1][2] + (b[i] == '1' && b[i - 1] == '0'));
		//printf("%d %d %d %d\n", i, t[i][0], t[i][1], t[i][2]);
	} 
	printf("%d", min({t[n][0], t[n][1], t[n][2]}));

	return 0;
}

Compilation message

lamp.cpp: In function 'int main()':
lamp.cpp:27:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
lamp.cpp:28:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s", a + 1);
  ~~~~~^~~~~~~~~~~~~
lamp.cpp:29:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s", b + 1);
  ~~~~~^~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 292 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 352 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 352 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 292 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 352 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 352 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 ms 380 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 2 ms 376 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 2 ms 376 KB Output is correct
42 Correct 2 ms 380 KB Output is correct
43 Correct 2 ms 376 KB Output is correct
44 Correct 2 ms 376 KB Output is correct
45 Correct 2 ms 376 KB Output is correct
46 Correct 2 ms 376 KB Output is correct
47 Correct 2 ms 376 KB Output is correct
48 Correct 2 ms 376 KB Output is correct
49 Correct 2 ms 380 KB Output is correct
50 Correct 2 ms 376 KB Output is correct
51 Correct 3 ms 376 KB Output is correct
52 Correct 2 ms 376 KB Output is correct
53 Correct 2 ms 376 KB Output is correct
54 Correct 2 ms 376 KB Output is correct
55 Correct 2 ms 376 KB Output is correct
56 Correct 2 ms 380 KB Output is correct
57 Correct 2 ms 376 KB Output is correct
58 Correct 2 ms 376 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 26 ms 15992 KB Output is correct
8 Correct 27 ms 15996 KB Output is correct
9 Correct 26 ms 15992 KB Output is correct
10 Correct 26 ms 15992 KB Output is correct
11 Correct 26 ms 15992 KB Output is correct
12 Correct 26 ms 15960 KB Output is correct
13 Correct 26 ms 15964 KB Output is correct
14 Correct 26 ms 15992 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 292 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 352 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 352 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 ms 380 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 2 ms 376 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 2 ms 376 KB Output is correct
42 Correct 2 ms 380 KB Output is correct
43 Correct 2 ms 376 KB Output is correct
44 Correct 2 ms 376 KB Output is correct
45 Correct 2 ms 376 KB Output is correct
46 Correct 2 ms 376 KB Output is correct
47 Correct 2 ms 376 KB Output is correct
48 Correct 2 ms 376 KB Output is correct
49 Correct 2 ms 380 KB Output is correct
50 Correct 2 ms 376 KB Output is correct
51 Correct 3 ms 376 KB Output is correct
52 Correct 2 ms 376 KB Output is correct
53 Correct 2 ms 376 KB Output is correct
54 Correct 2 ms 376 KB Output is correct
55 Correct 2 ms 376 KB Output is correct
56 Correct 2 ms 380 KB Output is correct
57 Correct 2 ms 376 KB Output is correct
58 Correct 2 ms 376 KB Output is correct
59 Correct 2 ms 376 KB Output is correct
60 Correct 2 ms 376 KB Output is correct
61 Correct 2 ms 376 KB Output is correct
62 Correct 2 ms 376 KB Output is correct
63 Correct 2 ms 376 KB Output is correct
64 Correct 2 ms 376 KB Output is correct
65 Correct 26 ms 15992 KB Output is correct
66 Correct 27 ms 15996 KB Output is correct
67 Correct 26 ms 15992 KB Output is correct
68 Correct 26 ms 15992 KB Output is correct
69 Correct 26 ms 15992 KB Output is correct
70 Correct 26 ms 15960 KB Output is correct
71 Correct 26 ms 15964 KB Output is correct
72 Correct 26 ms 15992 KB Output is correct
73 Correct 26 ms 15992 KB Output is correct
74 Correct 26 ms 15992 KB Output is correct
75 Correct 27 ms 16040 KB Output is correct
76 Correct 27 ms 15992 KB Output is correct
77 Correct 26 ms 15888 KB Output is correct
78 Correct 26 ms 15992 KB Output is correct
79 Correct 25 ms 15992 KB Output is correct
80 Correct 26 ms 15992 KB Output is correct
81 Correct 26 ms 15992 KB Output is correct
82 Correct 26 ms 15992 KB Output is correct
83 Correct 31 ms 15992 KB Output is correct
84 Correct 31 ms 15992 KB Output is correct
85 Correct 31 ms 15992 KB Output is correct
86 Correct 31 ms 15992 KB Output is correct
87 Correct 31 ms 15992 KB Output is correct
88 Correct 31 ms 16040 KB Output is correct
89 Correct 31 ms 15992 KB Output is correct
90 Correct 31 ms 15960 KB Output is correct
91 Correct 35 ms 15992 KB Output is correct
92 Correct 33 ms 15992 KB Output is correct
93 Correct 35 ms 15992 KB Output is correct
94 Correct 34 ms 15992 KB Output is correct
95 Correct 34 ms 15992 KB Output is correct
96 Correct 35 ms 15992 KB Output is correct
97 Correct 34 ms 15992 KB Output is correct
98 Correct 35 ms 15976 KB Output is correct
99 Correct 34 ms 15992 KB Output is correct
100 Correct 34 ms 15992 KB Output is correct
101 Correct 34 ms 15992 KB Output is correct
102 Correct 35 ms 15992 KB Output is correct