oj.uz

Submission #796808

# Submission time Handle Problem Language Result Execution time Memory
796808 2023-07-28T18:46:01 Z vjudge1 Lamps (JOI19_lamps) C++17
100 / 100
 94 ms 3328 KB 
#ifdef Home
#define _GLIBCXX_DEBUG
#endif // Home

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;

const int inf = 1e9;

//              first 
// memory optimization
//              second 
// 0 - all 0, 
// 1 - all 1
// 2 - no changes, 
//              thrid
// 0 not have xor
// 1 have xor

main() {
#ifdef Home
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif // Home
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int n, cr = 1, pr = 0;
    string a, b;
    cin >> n >> a >> b;
    vector < vector < vector < int > > > dp(2, vector < vector < int > > (3, vector < int > (2, inf)));
    dp[pr][2][0] = 0;
    for(int i = 0; i < n; ++ i) {
        dp[cr] = {{inf, inf}, {inf, inf}, {inf, inf}};
        if(a[i] == b[i]) {
            dp[cr][2][0] = min({dp[pr][2][0], dp[pr][2][1], dp[pr][1][0], dp[pr][1][1], dp[pr][0][0], dp[pr][0][1]});
        } else {
            dp[cr][2][1] = min({dp[pr][2][0] + 1, dp[pr][2][1], dp[pr][1][0] + 1, dp[pr][1][1], dp[pr][0][0] + 1, dp[pr][0][1]});
        }
        if(b[i] == '0') {
            dp[cr][0][0] = min({dp[pr][0][0], dp[pr][2][0] + 1, dp[pr][2][1] + 1, 
                                dp[pr][0][1], dp[pr][1][0] + 1, dp[pr][1][1] + 1});

            dp[cr][1][1] = min({dp[pr][1][1], dp[pr][1][0] + 1, dp[pr][2][1] + 1, 
                                              dp[pr][0][1] + 1, dp[pr][2][0] + 2, dp[pr][0][0] + 2});
        } else {
            dp[cr][1][0] = min({dp[pr][1][0], dp[pr][2][0] + 1, dp[pr][2][1] + 1,
                                dp[pr][1][1], dp[pr][0][0] + 1, dp[pr][0][1] + 1});

            dp[cr][0][1] = min({dp[pr][0][1], dp[pr][0][0] + 1, dp[pr][2][1] + 1, 
                                              dp[pr][1][1] + 1, dp[pr][2][0] + 2, dp[pr][1][0] + 2});
        }
        swap(cr, pr);
    }
    cout << min({dp[pr][0][0], dp[pr][0][1], dp[pr][1][0], dp[pr][1][1], dp[pr][2][0], dp[pr][2][1]});
}

Compilation message

lamp.cpp:24:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   24 | main() {
      | ^~~~

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 0 ms 212 KB Output is correct
5 Correct 1 ms 324 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 320 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 316 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 320 KB Output is correct
15 Correct 0 ms 324 KB Output is correct
16 Correct 1 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 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 316 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 320 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 320 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 0 ms 212 KB Output is correct
5 Correct 1 ms 324 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 320 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 316 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 320 KB Output is correct
15 Correct 0 ms 324 KB Output is correct
16 Correct 1 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 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 316 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 320 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 320 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 320 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 320 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 212 KB Output is correct
48 Correct 1 ms 316 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 320 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 320 KB Output is correct
56 Correct 1 ms 340 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 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 74 ms 3316 KB Output is correct
8 Correct 80 ms 3328 KB Output is correct
9 Correct 81 ms 3276 KB Output is correct
10 Correct 80 ms 3272 KB Output is correct
11 Correct 80 ms 3240 KB Output is correct
12 Correct 84 ms 3068 KB Output is correct
13 Correct 80 ms 3168 KB Output is correct
14 Correct 80 ms 3176 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 0 ms 212 KB Output is correct
5 Correct 1 ms 324 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 320 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 316 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 320 KB Output is correct
15 Correct 0 ms 324 KB Output is correct
16 Correct 1 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 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 316 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 320 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 320 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 320 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 320 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 212 KB Output is correct
48 Correct 1 ms 316 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 320 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 320 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 1 ms 212 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 324 KB Output is correct
62 Correct 1 ms 212 KB Output is correct
63 Correct 1 ms 212 KB Output is correct
64 Correct 1 ms 212 KB Output is correct
65 Correct 74 ms 3316 KB Output is correct
66 Correct 80 ms 3328 KB Output is correct
67 Correct 81 ms 3276 KB Output is correct
68 Correct 80 ms 3272 KB Output is correct
69 Correct 80 ms 3240 KB Output is correct
70 Correct 84 ms 3068 KB Output is correct
71 Correct 80 ms 3168 KB Output is correct
72 Correct 80 ms 3176 KB Output is correct
73 Correct 83 ms 3140 KB Output is correct
74 Correct 75 ms 3176 KB Output is correct
75 Correct 85 ms 3260 KB Output is correct
76 Correct 85 ms 3188 KB Output is correct
77 Correct 83 ms 3060 KB Output is correct
78 Correct 81 ms 3100 KB Output is correct
79 Correct 75 ms 3088 KB Output is correct
80 Correct 86 ms 3084 KB Output is correct
81 Correct 81 ms 3196 KB Output is correct
82 Correct 79 ms 3124 KB Output is correct
83 Correct 87 ms 3120 KB Output is correct
84 Correct 88 ms 3004 KB Output is correct
85 Correct 88 ms 3168 KB Output is correct
86 Correct 92 ms 3200 KB Output is correct
87 Correct 88 ms 3304 KB Output is correct
88 Correct 87 ms 3048 KB Output is correct
89 Correct 87 ms 3092 KB Output is correct
90 Correct 88 ms 3060 KB Output is correct
91 Correct 89 ms 3168 KB Output is correct
92 Correct 89 ms 3180 KB Output is correct
93 Correct 89 ms 3224 KB Output is correct
94 Correct 91 ms 3176 KB Output is correct
95 Correct 93 ms 3256 KB Output is correct
96 Correct 91 ms 3132 KB Output is correct
97 Correct 91 ms 3132 KB Output is correct
98 Correct 94 ms 3176 KB Output is correct
99 Correct 90 ms 3156 KB Output is correct
100 Correct 90 ms 3112 KB Output is correct
101 Correct 92 ms 3092 KB Output is correct
102 Correct 90 ms 3176 KB Output is correct