oj.uz

Submission #589263

# Submission time Handle Problem Language Result Execution time Memory
589263 2022-07-04T11:11:01 Z SlavicG Lamps (JOI19_lamps) C++17
100 / 100
 741 ms 66036 KB 
#include "bits/stdc++.h"
using namespace std;
 
#define ll long long
 
#define       forn(i,n)              for(int i=0;i<n;i++)
#define          all(v)              v.begin(), v.end()
#define         rall(v)              v.rbegin(),v.rend()
 
#define            pb                push_back
#define          sz(a)               (int)a.size()

const int N = 1e6 + 10, inf = 1e8;
int dp[N][2][2][2][2];
void solve() {  
    int n; string a, b; cin >> n >> a >> b;
    forn(I, N) forn(A, 2) forn(B, 2) forn(C, 2) forn(D, 2) dp[I][A][B][C][D] = inf;

    dp[0][0][0][0][0] = 0;

    a = "?" + a;
    b = "?" + b;
    for(int i = 1; i <= n; ++i) {
        for(int prev_set_0: {0, 1}) {
            for(int prev_set_1: {0, 1}) {
                if(prev_set_0 && prev_set_1) continue;
                for(int prev_set_xor_before: {0, 1}) {
                    for(int prev_set_xor_after: {0, 1}) {
                        if(prev_set_xor_after && prev_set_xor_before) continue;
                        for(int set_0: {0, 1}) {
                            for(int set_1: {0, 1}) {
                                if(set_0 && set_1) continue;
                                for(int set_xor_before: {0, 1}) {
                                    for(int set_xor_after: {0, 1}) {
                                        if(set_xor_after && prev_set_xor_before) continue;
                                            int newmoves = 0;
                                            if(set_0 && !prev_set_0) ++newmoves;
                                            if(set_1 && !prev_set_1) ++newmoves;
                                            if(set_xor_before && !prev_set_xor_before) ++newmoves;
                                            if(set_xor_after && !prev_set_xor_after) ++newmoves;
                                            int x = (a[i] - '0');
                                            if(set_xor_before) x ^= 1;
                                            if(set_0) x = 0;
                                            if(set_1) x = 1;
                                            if(set_xor_after) x ^= 1;
                                            if(x != b[i] - '0') continue;
                                            dp[i][set_0][set_1][set_xor_before][set_xor_after] = 
                                            min(dp[i][set_0][set_1][set_xor_before][set_xor_after], 
                                            dp[i - 1][prev_set_0][prev_set_1][prev_set_xor_before][prev_set_xor_after] + newmoves);
                                        }
                                    }
                                }
                            }
                        }
                }
            }
        }
    }
    int ans = inf;
    for(int A: {0, 1}) for(int B: {0, 1}) for(int C: {0, 1}) for(int D: {0, 1}) ans = min(ans, dp[n][A][B][C][D]);
    cout << ans << "\n";
}   
     
int32_t main() {
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int t = 1;
    //cin >> t;
    while(t--) {
        solve();
    }
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 62816 KB Output is correct
2 Correct 28 ms 62896 KB Output is correct
3 Correct 28 ms 62848 KB Output is correct
4 Correct 28 ms 62796 KB Output is correct
5 Correct 28 ms 62916 KB Output is correct
6 Correct 32 ms 62932 KB Output is correct
7 Correct 29 ms 62944 KB Output is correct
8 Correct 30 ms 62932 KB Output is correct
9 Correct 28 ms 62908 KB Output is correct
10 Correct 32 ms 62828 KB Output is correct
11 Correct 29 ms 62868 KB Output is correct
12 Correct 29 ms 62836 KB Output is correct
13 Correct 28 ms 62864 KB Output is correct
14 Correct 28 ms 62944 KB Output is correct
15 Correct 28 ms 62816 KB Output is correct
16 Correct 31 ms 62936 KB Output is correct
17 Correct 29 ms 62872 KB Output is correct
18 Correct 31 ms 62876 KB Output is correct
19 Correct 35 ms 62840 KB Output is correct
20 Correct 29 ms 62912 KB Output is correct
21 Correct 28 ms 62864 KB Output is correct
22 Correct 30 ms 62820 KB Output is correct
23 Correct 29 ms 62936 KB Output is correct
24 Correct 30 ms 62924 KB Output is correct
25 Correct 28 ms 62796 KB Output is correct
26 Correct 29 ms 62800 KB Output is correct
27 Correct 30 ms 62860 KB Output is correct
28 Correct 33 ms 62932 KB Output is correct
29 Correct 33 ms 62880 KB Output is correct
30 Correct 31 ms 62860 KB Output is correct
31 Correct 30 ms 62832 KB Output is correct
32 Correct 29 ms 62852 KB Output is correct
33 Correct 28 ms 62932 KB Output is correct
34 Correct 28 ms 62888 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 62816 KB Output is correct
2 Correct 28 ms 62896 KB Output is correct
3 Correct 28 ms 62848 KB Output is correct
4 Correct 28 ms 62796 KB Output is correct
5 Correct 28 ms 62916 KB Output is correct
6 Correct 32 ms 62932 KB Output is correct
7 Correct 29 ms 62944 KB Output is correct
8 Correct 30 ms 62932 KB Output is correct
9 Correct 28 ms 62908 KB Output is correct
10 Correct 32 ms 62828 KB Output is correct
11 Correct 29 ms 62868 KB Output is correct
12 Correct 29 ms 62836 KB Output is correct
13 Correct 28 ms 62864 KB Output is correct
14 Correct 28 ms 62944 KB Output is correct
15 Correct 28 ms 62816 KB Output is correct
16 Correct 31 ms 62936 KB Output is correct
17 Correct 29 ms 62872 KB Output is correct
18 Correct 31 ms 62876 KB Output is correct
19 Correct 35 ms 62840 KB Output is correct
20 Correct 29 ms 62912 KB Output is correct
21 Correct 28 ms 62864 KB Output is correct
22 Correct 30 ms 62820 KB Output is correct
23 Correct 29 ms 62936 KB Output is correct
24 Correct 30 ms 62924 KB Output is correct
25 Correct 28 ms 62796 KB Output is correct
26 Correct 29 ms 62800 KB Output is correct
27 Correct 30 ms 62860 KB Output is correct
28 Correct 33 ms 62932 KB Output is correct
29 Correct 33 ms 62880 KB Output is correct
30 Correct 31 ms 62860 KB Output is correct
31 Correct 30 ms 62832 KB Output is correct
32 Correct 29 ms 62852 KB Output is correct
33 Correct 28 ms 62932 KB Output is correct
34 Correct 28 ms 62888 KB Output is correct
35 Correct 31 ms 62912 KB Output is correct
36 Correct 33 ms 62840 KB Output is correct
37 Correct 29 ms 62944 KB Output is correct
38 Correct 31 ms 62932 KB Output is correct
39 Correct 31 ms 62892 KB Output is correct
40 Correct 32 ms 62908 KB Output is correct
41 Correct 30 ms 62904 KB Output is correct
42 Correct 30 ms 62856 KB Output is correct
43 Correct 30 ms 62832 KB Output is correct
44 Correct 31 ms 62844 KB Output is correct
45 Correct 29 ms 62888 KB Output is correct
46 Correct 30 ms 62844 KB Output is correct
47 Correct 29 ms 62932 KB Output is correct
48 Correct 36 ms 62844 KB Output is correct
49 Correct 29 ms 62896 KB Output is correct
50 Correct 30 ms 62924 KB Output is correct
51 Correct 31 ms 62928 KB Output is correct
52 Correct 32 ms 62892 KB Output is correct
53 Correct 33 ms 62924 KB Output is correct
54 Correct 32 ms 62928 KB Output is correct
55 Correct 30 ms 62840 KB Output is correct
56 Correct 30 ms 62856 KB Output is correct
57 Correct 30 ms 62920 KB Output is correct
58 Correct 30 ms 62860 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 62900 KB Output is correct
2 Correct 28 ms 62864 KB Output is correct
3 Correct 29 ms 62912 KB Output is correct
4 Correct 33 ms 62864 KB Output is correct
5 Correct 34 ms 62860 KB Output is correct
6 Correct 39 ms 62860 KB Output is correct
7 Correct 673 ms 65936 KB Output is correct
8 Correct 682 ms 65924 KB Output is correct
9 Correct 675 ms 65932 KB Output is correct
10 Correct 673 ms 66028 KB Output is correct
11 Correct 683 ms 65904 KB Output is correct
12 Correct 727 ms 65968 KB Output is correct
13 Correct 686 ms 65980 KB Output is correct
14 Correct 673 ms 65948 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 62816 KB Output is correct
2 Correct 28 ms 62896 KB Output is correct
3 Correct 28 ms 62848 KB Output is correct
4 Correct 28 ms 62796 KB Output is correct
5 Correct 28 ms 62916 KB Output is correct
6 Correct 32 ms 62932 KB Output is correct
7 Correct 29 ms 62944 KB Output is correct
8 Correct 30 ms 62932 KB Output is correct
9 Correct 28 ms 62908 KB Output is correct
10 Correct 32 ms 62828 KB Output is correct
11 Correct 29 ms 62868 KB Output is correct
12 Correct 29 ms 62836 KB Output is correct
13 Correct 28 ms 62864 KB Output is correct
14 Correct 28 ms 62944 KB Output is correct
15 Correct 28 ms 62816 KB Output is correct
16 Correct 31 ms 62936 KB Output is correct
17 Correct 29 ms 62872 KB Output is correct
18 Correct 31 ms 62876 KB Output is correct
19 Correct 35 ms 62840 KB Output is correct
20 Correct 29 ms 62912 KB Output is correct
21 Correct 28 ms 62864 KB Output is correct
22 Correct 30 ms 62820 KB Output is correct
23 Correct 29 ms 62936 KB Output is correct
24 Correct 30 ms 62924 KB Output is correct
25 Correct 28 ms 62796 KB Output is correct
26 Correct 29 ms 62800 KB Output is correct
27 Correct 30 ms 62860 KB Output is correct
28 Correct 33 ms 62932 KB Output is correct
29 Correct 33 ms 62880 KB Output is correct
30 Correct 31 ms 62860 KB Output is correct
31 Correct 30 ms 62832 KB Output is correct
32 Correct 29 ms 62852 KB Output is correct
33 Correct 28 ms 62932 KB Output is correct
34 Correct 28 ms 62888 KB Output is correct
35 Correct 31 ms 62912 KB Output is correct
36 Correct 33 ms 62840 KB Output is correct
37 Correct 29 ms 62944 KB Output is correct
38 Correct 31 ms 62932 KB Output is correct
39 Correct 31 ms 62892 KB Output is correct
40 Correct 32 ms 62908 KB Output is correct
41 Correct 30 ms 62904 KB Output is correct
42 Correct 30 ms 62856 KB Output is correct
43 Correct 30 ms 62832 KB Output is correct
44 Correct 31 ms 62844 KB Output is correct
45 Correct 29 ms 62888 KB Output is correct
46 Correct 30 ms 62844 KB Output is correct
47 Correct 29 ms 62932 KB Output is correct
48 Correct 36 ms 62844 KB Output is correct
49 Correct 29 ms 62896 KB Output is correct
50 Correct 30 ms 62924 KB Output is correct
51 Correct 31 ms 62928 KB Output is correct
52 Correct 32 ms 62892 KB Output is correct
53 Correct 33 ms 62924 KB Output is correct
54 Correct 32 ms 62928 KB Output is correct
55 Correct 30 ms 62840 KB Output is correct
56 Correct 30 ms 62856 KB Output is correct
57 Correct 30 ms 62920 KB Output is correct
58 Correct 30 ms 62860 KB Output is correct
59 Correct 28 ms 62900 KB Output is correct
60 Correct 28 ms 62864 KB Output is correct
61 Correct 29 ms 62912 KB Output is correct
62 Correct 33 ms 62864 KB Output is correct
63 Correct 34 ms 62860 KB Output is correct
64 Correct 39 ms 62860 KB Output is correct
65 Correct 673 ms 65936 KB Output is correct
66 Correct 682 ms 65924 KB Output is correct
67 Correct 675 ms 65932 KB Output is correct
68 Correct 673 ms 66028 KB Output is correct
69 Correct 683 ms 65904 KB Output is correct
70 Correct 727 ms 65968 KB Output is correct
71 Correct 686 ms 65980 KB Output is correct
72 Correct 673 ms 65948 KB Output is correct
73 Correct 709 ms 65944 KB Output is correct
74 Correct 699 ms 65920 KB Output is correct
75 Correct 684 ms 65968 KB Output is correct
76 Correct 678 ms 65944 KB Output is correct
77 Correct 660 ms 65968 KB Output is correct
78 Correct 659 ms 65908 KB Output is correct
79 Correct 715 ms 65944 KB Output is correct
80 Correct 689 ms 65968 KB Output is correct
81 Correct 664 ms 65968 KB Output is correct
82 Correct 666 ms 66036 KB Output is correct
83 Correct 741 ms 65948 KB Output is correct
84 Correct 696 ms 66000 KB Output is correct
85 Correct 686 ms 65932 KB Output is correct
86 Correct 690 ms 65956 KB Output is correct
87 Correct 701 ms 65920 KB Output is correct
88 Correct 692 ms 65944 KB Output is correct
89 Correct 699 ms 65956 KB Output is correct
90 Correct 699 ms 65944 KB Output is correct
91 Correct 703 ms 65928 KB Output is correct
92 Correct 699 ms 65944 KB Output is correct
93 Correct 698 ms 65956 KB Output is correct
94 Correct 712 ms 65968 KB Output is correct
95 Correct 709 ms 65956 KB Output is correct
96 Correct 702 ms 65980 KB Output is correct
97 Correct 715 ms 65944 KB Output is correct
98 Correct 730 ms 65964 KB Output is correct
99 Correct 718 ms 65984 KB Output is correct
100 Correct 702 ms 65940 KB Output is correct
101 Correct 706 ms 65912 KB Output is correct
102 Correct 714 ms 65952 KB Output is correct