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Submission #829988

# Submission time Handle Problem Language Result Execution time Memory
829988 2023-08-18T16:52:16 Z MohamedAhmed04 Lamps (JOI19_lamps) C++14
100 / 100
 100 ms 94508 KB 
#include <bits/stdc++.h>

using namespace std ;

const int MAX = 1e6 + 10 ;

int arr[MAX] ;
int n ;

int dp[MAX][3] ;

string s , t ;

int solve(int idx , int cur)
{
	if(idx == n)
		return 0 ; 
	int &ret = dp[idx][cur] ;
	if(ret != -1)
		return ret ;
	ret = 1e9 ;
	bool prvflip = false ;
	char c = '0' + cur ;
	if(idx && cur == 2)
		c = s[idx-1] ;
	if(idx && c != t[idx-1])
		prvflip = true ;
	for(int i = 0 ; i <= 2 ; ++i)
	{
		c = '0' + i ;
		if(i == 2)
			c = s[idx] ;
		bool curflip = (c != t[idx]) ;
		ret = min(ret , solve(idx+1 , i) + (curflip && !prvflip) + (i != 2 && i != cur)) ;
	}
	return ret ;
}

int main()
{
	memset(dp , -1 , sizeof(dp)) ;
	ios_base::sync_with_stdio(0) ;
	cin.tie(0) ;
	cin>>n ;
	cin>>s ;
	cin>>t ;
	return cout<<solve(0 , 2)<<"\n" , 0 ;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 11988 KB Output is correct
2 Correct 5 ms 11988 KB Output is correct
3 Correct 5 ms 11988 KB Output is correct
4 Correct 5 ms 12080 KB Output is correct
5 Correct 4 ms 12072 KB Output is correct
6 Correct 4 ms 11988 KB Output is correct
7 Correct 5 ms 11988 KB Output is correct
8 Correct 6 ms 12116 KB Output is correct
9 Correct 5 ms 11988 KB Output is correct
10 Correct 5 ms 12076 KB Output is correct
11 Correct 5 ms 11988 KB Output is correct
12 Correct 5 ms 11988 KB Output is correct
13 Correct 5 ms 12056 KB Output is correct
14 Correct 5 ms 11988 KB Output is correct
15 Correct 5 ms 11988 KB Output is correct
16 Correct 5 ms 11988 KB Output is correct
17 Correct 5 ms 11988 KB Output is correct
18 Correct 5 ms 11988 KB Output is correct
19 Correct 6 ms 12076 KB Output is correct
20 Correct 5 ms 11988 KB Output is correct
21 Correct 6 ms 11988 KB Output is correct
22 Correct 5 ms 11988 KB Output is correct
23 Correct 4 ms 11988 KB Output is correct
24 Correct 5 ms 12072 KB Output is correct
25 Correct 5 ms 11988 KB Output is correct
26 Correct 5 ms 11988 KB Output is correct
27 Correct 5 ms 12076 KB Output is correct
28 Correct 4 ms 11988 KB Output is correct
29 Correct 5 ms 12076 KB Output is correct
30 Correct 5 ms 12072 KB Output is correct
31 Correct 6 ms 11988 KB Output is correct
32 Correct 6 ms 12076 KB Output is correct
33 Correct 4 ms 11988 KB Output is correct
34 Correct 4 ms 12080 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 11988 KB Output is correct
2 Correct 5 ms 11988 KB Output is correct
3 Correct 5 ms 11988 KB Output is correct
4 Correct 5 ms 12080 KB Output is correct
5 Correct 4 ms 12072 KB Output is correct
6 Correct 4 ms 11988 KB Output is correct
7 Correct 5 ms 11988 KB Output is correct
8 Correct 6 ms 12116 KB Output is correct
9 Correct 5 ms 11988 KB Output is correct
10 Correct 5 ms 12076 KB Output is correct
11 Correct 5 ms 11988 KB Output is correct
12 Correct 5 ms 11988 KB Output is correct
13 Correct 5 ms 12056 KB Output is correct
14 Correct 5 ms 11988 KB Output is correct
15 Correct 5 ms 11988 KB Output is correct
16 Correct 5 ms 11988 KB Output is correct
17 Correct 5 ms 11988 KB Output is correct
18 Correct 5 ms 11988 KB Output is correct
19 Correct 6 ms 12076 KB Output is correct
20 Correct 5 ms 11988 KB Output is correct
21 Correct 6 ms 11988 KB Output is correct
22 Correct 5 ms 11988 KB Output is correct
23 Correct 4 ms 11988 KB Output is correct
24 Correct 5 ms 12072 KB Output is correct
25 Correct 5 ms 11988 KB Output is correct
26 Correct 5 ms 11988 KB Output is correct
27 Correct 5 ms 12076 KB Output is correct
28 Correct 4 ms 11988 KB Output is correct
29 Correct 5 ms 12076 KB Output is correct
30 Correct 5 ms 12072 KB Output is correct
31 Correct 6 ms 11988 KB Output is correct
32 Correct 6 ms 12076 KB Output is correct
33 Correct 4 ms 11988 KB Output is correct
34 Correct 4 ms 12080 KB Output is correct
35 Correct 5 ms 12204 KB Output is correct
36 Correct 5 ms 12116 KB Output is correct
37 Correct 5 ms 12116 KB Output is correct
38 Correct 6 ms 12116 KB Output is correct
39 Correct 5 ms 12116 KB Output is correct
40 Correct 5 ms 12116 KB Output is correct
41 Correct 5 ms 12116 KB Output is correct
42 Correct 5 ms 12116 KB Output is correct
43 Correct 5 ms 12116 KB Output is correct
44 Correct 5 ms 12200 KB Output is correct
45 Correct 6 ms 12120 KB Output is correct
46 Correct 5 ms 12208 KB Output is correct
47 Correct 6 ms 12116 KB Output is correct
48 Correct 6 ms 12116 KB Output is correct
49 Correct 6 ms 12204 KB Output is correct
50 Correct 5 ms 12116 KB Output is correct
51 Correct 5 ms 12200 KB Output is correct
52 Correct 5 ms 12116 KB Output is correct
53 Correct 5 ms 12204 KB Output is correct
54 Correct 5 ms 12116 KB Output is correct
55 Correct 5 ms 12208 KB Output is correct
56 Correct 4 ms 12244 KB Output is correct
57 Correct 5 ms 12116 KB Output is correct
58 Correct 5 ms 12116 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 12080 KB Output is correct
2 Correct 4 ms 11988 KB Output is correct
3 Correct 5 ms 11988 KB Output is correct
4 Correct 4 ms 12080 KB Output is correct
5 Correct 5 ms 12076 KB Output is correct
6 Correct 5 ms 11988 KB Output is correct
7 Correct 99 ms 94404 KB Output is correct
8 Correct 88 ms 94448 KB Output is correct
9 Correct 89 ms 94396 KB Output is correct
10 Correct 87 ms 94392 KB Output is correct
11 Correct 86 ms 94276 KB Output is correct
12 Correct 86 ms 94288 KB Output is correct
13 Correct 88 ms 94364 KB Output is correct
14 Correct 96 ms 94408 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 11988 KB Output is correct
2 Correct 5 ms 11988 KB Output is correct
3 Correct 5 ms 11988 KB Output is correct
4 Correct 5 ms 12080 KB Output is correct
5 Correct 4 ms 12072 KB Output is correct
6 Correct 4 ms 11988 KB Output is correct
7 Correct 5 ms 11988 KB Output is correct
8 Correct 6 ms 12116 KB Output is correct
9 Correct 5 ms 11988 KB Output is correct
10 Correct 5 ms 12076 KB Output is correct
11 Correct 5 ms 11988 KB Output is correct
12 Correct 5 ms 11988 KB Output is correct
13 Correct 5 ms 12056 KB Output is correct
14 Correct 5 ms 11988 KB Output is correct
15 Correct 5 ms 11988 KB Output is correct
16 Correct 5 ms 11988 KB Output is correct
17 Correct 5 ms 11988 KB Output is correct
18 Correct 5 ms 11988 KB Output is correct
19 Correct 6 ms 12076 KB Output is correct
20 Correct 5 ms 11988 KB Output is correct
21 Correct 6 ms 11988 KB Output is correct
22 Correct 5 ms 11988 KB Output is correct
23 Correct 4 ms 11988 KB Output is correct
24 Correct 5 ms 12072 KB Output is correct
25 Correct 5 ms 11988 KB Output is correct
26 Correct 5 ms 11988 KB Output is correct
27 Correct 5 ms 12076 KB Output is correct
28 Correct 4 ms 11988 KB Output is correct
29 Correct 5 ms 12076 KB Output is correct
30 Correct 5 ms 12072 KB Output is correct
31 Correct 6 ms 11988 KB Output is correct
32 Correct 6 ms 12076 KB Output is correct
33 Correct 4 ms 11988 KB Output is correct
34 Correct 4 ms 12080 KB Output is correct
35 Correct 5 ms 12204 KB Output is correct
36 Correct 5 ms 12116 KB Output is correct
37 Correct 5 ms 12116 KB Output is correct
38 Correct 6 ms 12116 KB Output is correct
39 Correct 5 ms 12116 KB Output is correct
40 Correct 5 ms 12116 KB Output is correct
41 Correct 5 ms 12116 KB Output is correct
42 Correct 5 ms 12116 KB Output is correct
43 Correct 5 ms 12116 KB Output is correct
44 Correct 5 ms 12200 KB Output is correct
45 Correct 6 ms 12120 KB Output is correct
46 Correct 5 ms 12208 KB Output is correct
47 Correct 6 ms 12116 KB Output is correct
48 Correct 6 ms 12116 KB Output is correct
49 Correct 6 ms 12204 KB Output is correct
50 Correct 5 ms 12116 KB Output is correct
51 Correct 5 ms 12200 KB Output is correct
52 Correct 5 ms 12116 KB Output is correct
53 Correct 5 ms 12204 KB Output is correct
54 Correct 5 ms 12116 KB Output is correct
55 Correct 5 ms 12208 KB Output is correct
56 Correct 4 ms 12244 KB Output is correct
57 Correct 5 ms 12116 KB Output is correct
58 Correct 5 ms 12116 KB Output is correct
59 Correct 4 ms 12080 KB Output is correct
60 Correct 4 ms 11988 KB Output is correct
61 Correct 5 ms 11988 KB Output is correct
62 Correct 4 ms 12080 KB Output is correct
63 Correct 5 ms 12076 KB Output is correct
64 Correct 5 ms 11988 KB Output is correct
65 Correct 99 ms 94404 KB Output is correct
66 Correct 88 ms 94448 KB Output is correct
67 Correct 89 ms 94396 KB Output is correct
68 Correct 87 ms 94392 KB Output is correct
69 Correct 86 ms 94276 KB Output is correct
70 Correct 86 ms 94288 KB Output is correct
71 Correct 88 ms 94364 KB Output is correct
72 Correct 96 ms 94408 KB Output is correct
73 Correct 86 ms 94392 KB Output is correct
74 Correct 86 ms 94396 KB Output is correct
75 Correct 89 ms 94488 KB Output is correct
76 Correct 84 ms 94388 KB Output is correct
77 Correct 89 ms 94332 KB Output is correct
78 Correct 90 ms 94396 KB Output is correct
79 Correct 88 ms 94380 KB Output is correct
80 Correct 98 ms 94404 KB Output is correct
81 Correct 79 ms 94368 KB Output is correct
82 Correct 86 ms 94336 KB Output is correct
83 Correct 83 ms 94276 KB Output is correct
84 Correct 84 ms 94400 KB Output is correct
85 Correct 90 ms 94344 KB Output is correct
86 Correct 85 ms 94380 KB Output is correct
87 Correct 99 ms 94300 KB Output is correct
88 Correct 87 ms 94400 KB Output is correct
89 Correct 86 ms 94396 KB Output is correct
90 Correct 92 ms 94360 KB Output is correct
91 Correct 86 ms 94360 KB Output is correct
92 Correct 90 ms 94324 KB Output is correct
93 Correct 84 ms 94276 KB Output is correct
94 Correct 100 ms 94400 KB Output is correct
95 Correct 89 ms 94272 KB Output is correct
96 Correct 85 ms 94380 KB Output is correct
97 Correct 86 ms 94324 KB Output is correct
98 Correct 89 ms 94340 KB Output is correct
99 Correct 90 ms 94396 KB Output is correct
100 Correct 90 ms 94508 KB Output is correct
101 Correct 90 ms 94340 KB Output is correct
102 Correct 82 ms 94396 KB Output is correct