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Submission #596740

# Submission time Handle Problem Language Result Execution time Memory
596740 2022-07-15T02:44:15 Z czhang2718 Lamps (JOI19_lamps) C++17
100 / 100
 61 ms 24100 KB 
#include "bits/stdc++.h"
using namespace std;

const int N=1e6;
int n;
string s, t;
int a[N], b[N];
int dp[N][3];

int main(){
    cin.tie(0)->sync_with_stdio(0);

    cin >> n >> s >> t;
    for(int i=0; i<n; i++){
        a[i]=s[i]=='1';
        b[i]=t[i]=='1';
        for(int j=0; j<3; j++) dp[i][j]=1e9;
    }

    dp[0][0]=1+b[0];
    dp[0][1]=1+!b[0];
    dp[0][2]=a[0]^b[0];
    // for(int k=0; k<3; k++) cout << dp[0][k] << " ";
    //         cout << "\n";
    for(int i=1; i<n; i++){
        for(int j=0; j<3; j++){
            for(int k=0; k<3; k++){
                int old=(j<2?j:a[i-1]);
                int val=(k<2?k:a[i]);
                dp[i][k]=min(dp[i][k], dp[i-1][j]+(j!=1 && k==1) + (j!=0 && k==0) + ((val^b[i])&&(old==b[i-1])));
            }
        }
        // for(int k=0; k<3; k++) cout << dp[i][k] << " ";
        //     cout << "\n";
    }

    cout << min({dp[n-1][0], dp[n-1][1], dp[n-1][2]});
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 268 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 328 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 324 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 324 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 324 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 324 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 0 ms 340 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 0 ms 332 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 268 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 328 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 324 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 324 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 324 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 324 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 0 ms 340 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 0 ms 332 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 328 KB Output is correct
37 Correct 0 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 328 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 0 ms 340 KB Output is correct
47 Correct 0 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 328 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 328 KB Output is correct
53 Correct 1 ms 328 KB Output is correct
54 Correct 1 ms 340 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 328 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 0 ms 340 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 36 ms 23972 KB Output is correct
8 Correct 52 ms 23944 KB Output is correct
9 Correct 40 ms 23920 KB Output is correct
10 Correct 36 ms 23936 KB Output is correct
11 Correct 35 ms 23900 KB Output is correct
12 Correct 37 ms 23960 KB Output is correct
13 Correct 39 ms 23944 KB Output is correct
14 Correct 49 ms 23856 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 268 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 328 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 324 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 324 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 324 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 324 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 0 ms 340 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 0 ms 332 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 328 KB Output is correct
37 Correct 0 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 328 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 0 ms 340 KB Output is correct
47 Correct 0 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 328 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 328 KB Output is correct
53 Correct 1 ms 328 KB Output is correct
54 Correct 1 ms 340 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 328 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 0 ms 340 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 1 ms 340 KB Output is correct
62 Correct 0 ms 340 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 0 ms 340 KB Output is correct
65 Correct 36 ms 23972 KB Output is correct
66 Correct 52 ms 23944 KB Output is correct
67 Correct 40 ms 23920 KB Output is correct
68 Correct 36 ms 23936 KB Output is correct
69 Correct 35 ms 23900 KB Output is correct
70 Correct 37 ms 23960 KB Output is correct
71 Correct 39 ms 23944 KB Output is correct
72 Correct 49 ms 23856 KB Output is correct
73 Correct 38 ms 23848 KB Output is correct
74 Correct 35 ms 23924 KB Output is correct
75 Correct 39 ms 23952 KB Output is correct
76 Correct 37 ms 23836 KB Output is correct
77 Correct 44 ms 24100 KB Output is correct
78 Correct 41 ms 24008 KB Output is correct
79 Correct 38 ms 23832 KB Output is correct
80 Correct 38 ms 23864 KB Output is correct
81 Correct 34 ms 23940 KB Output is correct
82 Correct 43 ms 23864 KB Output is correct
83 Correct 47 ms 23944 KB Output is correct
84 Correct 48 ms 23900 KB Output is correct
85 Correct 56 ms 23924 KB Output is correct
86 Correct 42 ms 23880 KB Output is correct
87 Correct 41 ms 23824 KB Output is correct
88 Correct 46 ms 23936 KB Output is correct
89 Correct 43 ms 23908 KB Output is correct
90 Correct 44 ms 24016 KB Output is correct
91 Correct 44 ms 23836 KB Output is correct
92 Correct 45 ms 23836 KB Output is correct
93 Correct 44 ms 23944 KB Output is correct
94 Correct 47 ms 23900 KB Output is correct
95 Correct 56 ms 23940 KB Output is correct
96 Correct 48 ms 23936 KB Output is correct
97 Correct 47 ms 23896 KB Output is correct
98 Correct 45 ms 23924 KB Output is correct
99 Correct 59 ms 23816 KB Output is correct
100 Correct 61 ms 23940 KB Output is correct
101 Correct 47 ms 23900 KB Output is correct
102 Correct 44 ms 23864 KB Output is correct