#include <bits/stdc++.h>
using namespace std;
#define int long long
const int INF = 1e18;
void r(int &a, int b){ a = min(a, b); }
signed main(){
cin.tie(0)->sync_with_stdio(0);
int n; string a, b; cin >> n >> a >> b;
array<int, 3> dp = {0, INF, INF}, c;
for(int i=0; i<n; ++i){
c = {INF, INF, INF};
array<bool, 3> prev = {b[i-1] != a[i-1], b[i-1] == '1', b[i-1] == '0'};
array<bool, 3> curr = {b[i] != a[i], b[i] == '1', b[i] == '0'};
for(int j=0; j<3; ++j){
for(int k=0; k<3; ++k){
int cost = (k && k!=j) + (curr[k] && curr[k] != prev[j]);
r(c[k], dp[j] + cost);
}
}
swap(c, dp);
}
cout << min(dp[0], min(dp[1], dp[2]));
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
204 KB |
Output is correct |
| 6 |
Correct |
1 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
1 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 ms |
204 KB |
Output is correct |
| 10 |
Correct |
1 ms |
204 KB |
Output is correct |
| 11 |
Correct |
1 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
312 KB |
Output is correct |
| 13 |
Correct |
1 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
1 ms |
308 KB |
Output is correct |
| 16 |
Correct |
1 ms |
308 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
1 ms |
204 KB |
Output is correct |
| 19 |
Correct |
1 ms |
204 KB |
Output is correct |
| 20 |
Correct |
1 ms |
204 KB |
Output is correct |
| 21 |
Correct |
1 ms |
204 KB |
Output is correct |
| 22 |
Correct |
1 ms |
204 KB |
Output is correct |
| 23 |
Correct |
1 ms |
204 KB |
Output is correct |
| 24 |
Correct |
1 ms |
204 KB |
Output is correct |
| 25 |
Correct |
1 ms |
204 KB |
Output is correct |
| 26 |
Correct |
1 ms |
256 KB |
Output is correct |
| 27 |
Correct |
1 ms |
204 KB |
Output is correct |
| 28 |
Correct |
1 ms |
204 KB |
Output is correct |
| 29 |
Correct |
1 ms |
204 KB |
Output is correct |
| 30 |
Correct |
1 ms |
308 KB |
Output is correct |
| 31 |
Correct |
1 ms |
204 KB |
Output is correct |
| 32 |
Correct |
1 ms |
204 KB |
Output is correct |
| 33 |
Correct |
1 ms |
320 KB |
Output is correct |
| 34 |
Correct |
1 ms |
204 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
204 KB |
Output is correct |
| 6 |
Correct |
1 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
1 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 ms |
204 KB |
Output is correct |
| 10 |
Correct |
1 ms |
204 KB |
Output is correct |
| 11 |
Correct |
1 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
312 KB |
Output is correct |
| 13 |
Correct |
1 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
1 ms |
308 KB |
Output is correct |
| 16 |
Correct |
1 ms |
308 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
1 ms |
204 KB |
Output is correct |
| 19 |
Correct |
1 ms |
204 KB |
Output is correct |
| 20 |
Correct |
1 ms |
204 KB |
Output is correct |
| 21 |
Correct |
1 ms |
204 KB |
Output is correct |
| 22 |
Correct |
1 ms |
204 KB |
Output is correct |
| 23 |
Correct |
1 ms |
204 KB |
Output is correct |
| 24 |
Correct |
1 ms |
204 KB |
Output is correct |
| 25 |
Correct |
1 ms |
204 KB |
Output is correct |
| 26 |
Correct |
1 ms |
256 KB |
Output is correct |
| 27 |
Correct |
1 ms |
204 KB |
Output is correct |
| 28 |
Correct |
1 ms |
204 KB |
Output is correct |
| 29 |
Correct |
1 ms |
204 KB |
Output is correct |
| 30 |
Correct |
1 ms |
308 KB |
Output is correct |
| 31 |
Correct |
1 ms |
204 KB |
Output is correct |
| 32 |
Correct |
1 ms |
204 KB |
Output is correct |
| 33 |
Correct |
1 ms |
320 KB |
Output is correct |
| 34 |
Correct |
1 ms |
204 KB |
Output is correct |
| 35 |
Correct |
1 ms |
304 KB |
Output is correct |
| 36 |
Correct |
1 ms |
204 KB |
Output is correct |
| 37 |
Correct |
1 ms |
312 KB |
Output is correct |
| 38 |
Correct |
1 ms |
204 KB |
Output is correct |
| 39 |
Correct |
1 ms |
204 KB |
Output is correct |
| 40 |
Correct |
1 ms |
316 KB |
Output is correct |
| 41 |
Correct |
1 ms |
204 KB |
Output is correct |
| 42 |
Correct |
1 ms |
204 KB |
Output is correct |
| 43 |
Correct |
1 ms |
204 KB |
Output is correct |
| 44 |
Correct |
1 ms |
204 KB |
Output is correct |
| 45 |
Correct |
1 ms |
308 KB |
Output is correct |
| 46 |
Correct |
1 ms |
204 KB |
Output is correct |
| 47 |
Correct |
1 ms |
204 KB |
Output is correct |
| 48 |
Correct |
1 ms |
204 KB |
Output is correct |
| 49 |
Correct |
1 ms |
204 KB |
Output is correct |
| 50 |
Correct |
1 ms |
204 KB |
Output is correct |
| 51 |
Correct |
1 ms |
332 KB |
Output is correct |
| 52 |
Correct |
1 ms |
204 KB |
Output is correct |
| 53 |
Correct |
1 ms |
204 KB |
Output is correct |
| 54 |
Correct |
1 ms |
204 KB |
Output is correct |
| 55 |
Correct |
1 ms |
312 KB |
Output is correct |
| 56 |
Correct |
1 ms |
204 KB |
Output is correct |
| 57 |
Correct |
1 ms |
204 KB |
Output is correct |
| 58 |
Correct |
1 ms |
204 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
204 KB |
Output is correct |
| 6 |
Correct |
1 ms |
204 KB |
Output is correct |
| 7 |
Correct |
43 ms |
4472 KB |
Output is correct |
| 8 |
Correct |
37 ms |
4328 KB |
Output is correct |
| 9 |
Correct |
35 ms |
4328 KB |
Output is correct |
| 10 |
Correct |
34 ms |
4328 KB |
Output is correct |
| 11 |
Correct |
35 ms |
4384 KB |
Output is correct |
| 12 |
Correct |
40 ms |
4428 KB |
Output is correct |
| 13 |
Correct |
34 ms |
4380 KB |
Output is correct |
| 14 |
Correct |
34 ms |
4372 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
204 KB |
Output is correct |
| 6 |
Correct |
1 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
1 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 ms |
204 KB |
Output is correct |
| 10 |
Correct |
1 ms |
204 KB |
Output is correct |
| 11 |
Correct |
1 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
312 KB |
Output is correct |
| 13 |
Correct |
1 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
1 ms |
308 KB |
Output is correct |
| 16 |
Correct |
1 ms |
308 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
1 ms |
204 KB |
Output is correct |
| 19 |
Correct |
1 ms |
204 KB |
Output is correct |
| 20 |
Correct |
1 ms |
204 KB |
Output is correct |
| 21 |
Correct |
1 ms |
204 KB |
Output is correct |
| 22 |
Correct |
1 ms |
204 KB |
Output is correct |
| 23 |
Correct |
1 ms |
204 KB |
Output is correct |
| 24 |
Correct |
1 ms |
204 KB |
Output is correct |
| 25 |
Correct |
1 ms |
204 KB |
Output is correct |
| 26 |
Correct |
1 ms |
256 KB |
Output is correct |
| 27 |
Correct |
1 ms |
204 KB |
Output is correct |
| 28 |
Correct |
1 ms |
204 KB |
Output is correct |
| 29 |
Correct |
1 ms |
204 KB |
Output is correct |
| 30 |
Correct |
1 ms |
308 KB |
Output is correct |
| 31 |
Correct |
1 ms |
204 KB |
Output is correct |
| 32 |
Correct |
1 ms |
204 KB |
Output is correct |
| 33 |
Correct |
1 ms |
320 KB |
Output is correct |
| 34 |
Correct |
1 ms |
204 KB |
Output is correct |
| 35 |
Correct |
1 ms |
304 KB |
Output is correct |
| 36 |
Correct |
1 ms |
204 KB |
Output is correct |
| 37 |
Correct |
1 ms |
312 KB |
Output is correct |
| 38 |
Correct |
1 ms |
204 KB |
Output is correct |
| 39 |
Correct |
1 ms |
204 KB |
Output is correct |
| 40 |
Correct |
1 ms |
316 KB |
Output is correct |
| 41 |
Correct |
1 ms |
204 KB |
Output is correct |
| 42 |
Correct |
1 ms |
204 KB |
Output is correct |
| 43 |
Correct |
1 ms |
204 KB |
Output is correct |
| 44 |
Correct |
1 ms |
204 KB |
Output is correct |
| 45 |
Correct |
1 ms |
308 KB |
Output is correct |
| 46 |
Correct |
1 ms |
204 KB |
Output is correct |
| 47 |
Correct |
1 ms |
204 KB |
Output is correct |
| 48 |
Correct |
1 ms |
204 KB |
Output is correct |
| 49 |
Correct |
1 ms |
204 KB |
Output is correct |
| 50 |
Correct |
1 ms |
204 KB |
Output is correct |
| 51 |
Correct |
1 ms |
332 KB |
Output is correct |
| 52 |
Correct |
1 ms |
204 KB |
Output is correct |
| 53 |
Correct |
1 ms |
204 KB |
Output is correct |
| 54 |
Correct |
1 ms |
204 KB |
Output is correct |
| 55 |
Correct |
1 ms |
312 KB |
Output is correct |
| 56 |
Correct |
1 ms |
204 KB |
Output is correct |
| 57 |
Correct |
1 ms |
204 KB |
Output is correct |
| 58 |
Correct |
1 ms |
204 KB |
Output is correct |
| 59 |
Correct |
1 ms |
204 KB |
Output is correct |
| 60 |
Correct |
1 ms |
204 KB |
Output is correct |
| 61 |
Correct |
1 ms |
204 KB |
Output is correct |
| 62 |
Correct |
1 ms |
204 KB |
Output is correct |
| 63 |
Correct |
1 ms |
204 KB |
Output is correct |
| 64 |
Correct |
1 ms |
204 KB |
Output is correct |
| 65 |
Correct |
43 ms |
4472 KB |
Output is correct |
| 66 |
Correct |
37 ms |
4328 KB |
Output is correct |
| 67 |
Correct |
35 ms |
4328 KB |
Output is correct |
| 68 |
Correct |
34 ms |
4328 KB |
Output is correct |
| 69 |
Correct |
35 ms |
4384 KB |
Output is correct |
| 70 |
Correct |
40 ms |
4428 KB |
Output is correct |
| 71 |
Correct |
34 ms |
4380 KB |
Output is correct |
| 72 |
Correct |
34 ms |
4372 KB |
Output is correct |
| 73 |
Correct |
45 ms |
4328 KB |
Output is correct |
| 74 |
Correct |
33 ms |
4396 KB |
Output is correct |
| 75 |
Correct |
36 ms |
4372 KB |
Output is correct |
| 76 |
Correct |
36 ms |
4328 KB |
Output is correct |
| 77 |
Correct |
35 ms |
4372 KB |
Output is correct |
| 78 |
Correct |
37 ms |
4380 KB |
Output is correct |
| 79 |
Correct |
44 ms |
4328 KB |
Output is correct |
| 80 |
Correct |
49 ms |
4360 KB |
Output is correct |
| 81 |
Correct |
36 ms |
4432 KB |
Output is correct |
| 82 |
Correct |
35 ms |
4388 KB |
Output is correct |
| 83 |
Correct |
38 ms |
4328 KB |
Output is correct |
| 84 |
Correct |
37 ms |
4380 KB |
Output is correct |
| 85 |
Correct |
41 ms |
4372 KB |
Output is correct |
| 86 |
Correct |
38 ms |
4328 KB |
Output is correct |
| 87 |
Correct |
38 ms |
4380 KB |
Output is correct |
| 88 |
Correct |
38 ms |
4380 KB |
Output is correct |
| 89 |
Correct |
40 ms |
4432 KB |
Output is correct |
| 90 |
Correct |
40 ms |
4388 KB |
Output is correct |
| 91 |
Correct |
49 ms |
4380 KB |
Output is correct |
| 92 |
Correct |
42 ms |
4372 KB |
Output is correct |
| 93 |
Correct |
42 ms |
4380 KB |
Output is correct |
| 94 |
Correct |
41 ms |
4380 KB |
Output is correct |
| 95 |
Correct |
41 ms |
4328 KB |
Output is correct |
| 96 |
Correct |
43 ms |
4384 KB |
Output is correct |
| 97 |
Correct |
42 ms |
4380 KB |
Output is correct |
| 98 |
Correct |
45 ms |
4328 KB |
Output is correct |
| 99 |
Correct |
44 ms |
4328 KB |
Output is correct |
| 100 |
Correct |
42 ms |
4328 KB |
Output is correct |
| 101 |
Correct |
42 ms |
4376 KB |
Output is correct |
| 102 |
Correct |
41 ms |
4416 KB |
Output is correct |
