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Submission #794644

# Submission time Handle Problem Language Result Execution time Memory
794644 2023-07-26T18:06:57 Z phoenix Lamps (JOI19_lamps) C++17
100 / 100
 136 ms 4468 KB 
#include<bits/stdc++.h>

using namespace std;
using ll = long long;

const int INF = 1e9;

int n;
string s, t;

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    cin >> n;
    cin >> s;
    cin >> t;
    vector<vector<int>> dp(3, vector<int>(2, INF));
    dp[0][0] = 0;
    for(int i = 0; i < n; i++) {
        vector<vector<int>> newdp(3, vector<int>(2, INF));
        for(int op1 = 0; op1 < 3; op1++) {
            for(int x1 = 0; x1 < 2; x1++) {
                char x = s[i];
                if(op1) x = op1 - 1 + '0';
                if(x1) x = (x == '0' ? '1' : '0');
                if(x != t[i]) continue;
                for(int op2 = 0; op2 < 3; op2++) {
                    for(int x2 = 0; x2 < 2; x2++) {
                        int w = (op1 && op1 != op2) + (x1 && x1 != x2);
                        newdp[op1][x1] = min(dp[op2][x2] + w, newdp[op1][x1]);
                    }
                }
            }
        }
        dp = newdp;
    }
    int ans = INF;
    for(int x = 0; x < 3; x++) {
        for(int y = 0; y < 2; y++) {
            ans = min(ans, dp[x][y]);
        }
    }
    cout << ans;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 224 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 1 ms 320 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 320 KB Output is correct
34 Correct 1 ms 212 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 224 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 1 ms 320 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 320 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 316 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 320 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 324 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 328 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 316 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 1 ms 320 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 1 ms 212 KB Output is correct
55 Correct 1 ms 212 KB Output is correct
56 Correct 1 ms 328 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 1 ms 212 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 280 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 320 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 104 ms 4384 KB Output is correct
8 Correct 109 ms 4468 KB Output is correct
9 Correct 129 ms 4396 KB Output is correct
10 Correct 109 ms 4356 KB Output is correct
11 Correct 108 ms 4336 KB Output is correct
12 Correct 103 ms 4368 KB Output is correct
13 Correct 106 ms 4388 KB Output is correct
14 Correct 123 ms 4380 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 224 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 1 ms 320 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 320 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 316 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 320 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 324 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 328 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 316 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 1 ms 320 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 1 ms 212 KB Output is correct
55 Correct 1 ms 212 KB Output is correct
56 Correct 1 ms 328 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 1 ms 280 KB Output is correct
61 Correct 0 ms 212 KB Output is correct
62 Correct 0 ms 212 KB Output is correct
63 Correct 1 ms 320 KB Output is correct
64 Correct 1 ms 212 KB Output is correct
65 Correct 104 ms 4384 KB Output is correct
66 Correct 109 ms 4468 KB Output is correct
67 Correct 129 ms 4396 KB Output is correct
68 Correct 109 ms 4356 KB Output is correct
69 Correct 108 ms 4336 KB Output is correct
70 Correct 103 ms 4368 KB Output is correct
71 Correct 106 ms 4388 KB Output is correct
72 Correct 123 ms 4380 KB Output is correct
73 Correct 110 ms 4392 KB Output is correct
74 Correct 111 ms 4336 KB Output is correct
75 Correct 108 ms 4376 KB Output is correct
76 Correct 115 ms 4388 KB Output is correct
77 Correct 107 ms 4368 KB Output is correct
78 Correct 115 ms 4396 KB Output is correct
79 Correct 110 ms 4364 KB Output is correct
80 Correct 112 ms 4392 KB Output is correct
81 Correct 109 ms 4388 KB Output is correct
82 Correct 108 ms 4336 KB Output is correct
83 Correct 108 ms 4388 KB Output is correct
84 Correct 108 ms 4364 KB Output is correct
85 Correct 112 ms 4364 KB Output is correct
86 Correct 110 ms 4380 KB Output is correct
87 Correct 108 ms 4396 KB Output is correct
88 Correct 109 ms 4388 KB Output is correct
89 Correct 113 ms 4388 KB Output is correct
90 Correct 110 ms 4392 KB Output is correct
91 Correct 111 ms 4364 KB Output is correct
92 Correct 112 ms 4376 KB Output is correct
93 Correct 118 ms 4380 KB Output is correct
94 Correct 118 ms 4400 KB Output is correct
95 Correct 114 ms 4372 KB Output is correct
96 Correct 115 ms 4376 KB Output is correct
97 Correct 112 ms 4388 KB Output is correct
98 Correct 121 ms 4384 KB Output is correct
99 Correct 122 ms 4384 KB Output is correct
100 Correct 136 ms 4400 KB Output is correct
101 Correct 111 ms 4392 KB Output is correct
102 Correct 114 ms 4456 KB Output is correct