#pragma GCC optimize("Ofast")
#pragma GCC optimize("no-stack-protector")
//#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("fast-math")
#pragma GCC target("sse,sse2,sse3,ssse3,popcnt,abm,mmx,tune=native")
#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <stdio.h>
#include <cstdio>
#include <math.h>
#include <cmath>
#include <string>
#include <cstring>
#include <queue>
#include <deque>
#include <random>
#include <iomanip>
#include <bitset>
using namespace std;
template<typename T> void uin(T &a, T b) {
if (b < a) {
a = b;
}
}
template<typename T> void uax(T &a, T b) {
if (b > a) {
a = b;
}
}
#define ghost signed
#define left left228
#define right right228
#define complex complex228
#define count count228
#define sin sin228
#define list list228
const int N = 1000 * 1000 + 228;
const int INF = 1e9 + 228;
int n;
int s[N], t[N];
int dp[N][3][2];
int color[N][3];
/*
0 - none
1 - color 0
2 - color 1
*/
ghost main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cin >> n;
char chaaa;
for (int i = 1; i <= n; ++i) {
cin >> chaaa;
s[i] = (chaaa - '0');
}
for (int i = 1; i <= n; ++i) {
cin >> chaaa;
t[i] = (chaaa - '0');
}
for (int i = 1; i <= n; ++i) {
color[i][0] = s[i];
color[i][1] = 0;
color[i][2] = 1;
}
for (int i = 1; i <= n; ++i) {
for (int c1 = 0; c1 < 3; ++c1) {
for (int c2 = 0; c2 < 2; ++c2) {
dp[i][c1][c2] = INF;
}
}
}
for (int c1 = 0; c1 < 3; ++c1) {
for (int c2 = 0; c2 < 2; ++c2) {
if ((color[1][c1] ^ c2) == t[1]) {
dp[1][c1][c2] = (c1 > 0) + (c2 > 0);
}
}
}
for (int i = 1; i < n; ++i) {
for (int c1 = 0; c1 < 3; ++c1) {
for (int c2 = 0; c2 < 2; ++c2) {
if (dp[i][c1][c2] == INF) continue;
for (int b1 = 0; b1 < 3; ++b1) {
for (int b2 = 0; b2 < 2; ++b2) {
if ((color[i + 1][b1] ^ b2) != t[i + 1]) continue;
uin(dp[i + 1][b1][b2], dp[i][c1][c2] + (b1 && b1 != c1) + (b2 && b2 != c2));
}
}
}
}
}
int res = INF;
for (int c1 = 0; c1 < 3; ++c1) {
for (int c2 = 0; c2 < 2; ++c2) uin(res, dp[n][c1][c2]);
}
cout << res << '\n';
return 0;
} // kek ;
// Ого! Кажетсья это $#@!
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
504 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
380 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
2 ms |
376 KB |
Output is correct |
27 |
Correct |
2 ms |
376 KB |
Output is correct |
28 |
Correct |
2 ms |
376 KB |
Output is correct |
29 |
Correct |
2 ms |
376 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
31 |
Correct |
2 ms |
376 KB |
Output is correct |
32 |
Correct |
2 ms |
376 KB |
Output is correct |
33 |
Correct |
2 ms |
376 KB |
Output is correct |
34 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
504 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
380 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
2 ms |
376 KB |
Output is correct |
27 |
Correct |
2 ms |
376 KB |
Output is correct |
28 |
Correct |
2 ms |
376 KB |
Output is correct |
29 |
Correct |
2 ms |
376 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
31 |
Correct |
2 ms |
376 KB |
Output is correct |
32 |
Correct |
2 ms |
376 KB |
Output is correct |
33 |
Correct |
2 ms |
376 KB |
Output is correct |
34 |
Correct |
2 ms |
376 KB |
Output is correct |
35 |
Correct |
2 ms |
376 KB |
Output is correct |
36 |
Correct |
2 ms |
376 KB |
Output is correct |
37 |
Correct |
2 ms |
376 KB |
Output is correct |
38 |
Correct |
2 ms |
504 KB |
Output is correct |
39 |
Correct |
2 ms |
376 KB |
Output is correct |
40 |
Correct |
3 ms |
376 KB |
Output is correct |
41 |
Correct |
2 ms |
376 KB |
Output is correct |
42 |
Correct |
2 ms |
376 KB |
Output is correct |
43 |
Correct |
2 ms |
504 KB |
Output is correct |
44 |
Correct |
2 ms |
504 KB |
Output is correct |
45 |
Correct |
3 ms |
504 KB |
Output is correct |
46 |
Correct |
2 ms |
504 KB |
Output is correct |
47 |
Correct |
3 ms |
504 KB |
Output is correct |
48 |
Correct |
2 ms |
504 KB |
Output is correct |
49 |
Correct |
2 ms |
376 KB |
Output is correct |
50 |
Correct |
2 ms |
504 KB |
Output is correct |
51 |
Correct |
2 ms |
504 KB |
Output is correct |
52 |
Correct |
2 ms |
504 KB |
Output is correct |
53 |
Correct |
2 ms |
376 KB |
Output is correct |
54 |
Correct |
2 ms |
504 KB |
Output is correct |
55 |
Correct |
2 ms |
380 KB |
Output is correct |
56 |
Correct |
2 ms |
504 KB |
Output is correct |
57 |
Correct |
2 ms |
376 KB |
Output is correct |
58 |
Correct |
2 ms |
504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
380 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
90 ms |
43512 KB |
Output is correct |
8 |
Correct |
96 ms |
43332 KB |
Output is correct |
9 |
Correct |
98 ms |
43376 KB |
Output is correct |
10 |
Correct |
89 ms |
43384 KB |
Output is correct |
11 |
Correct |
92 ms |
43388 KB |
Output is correct |
12 |
Correct |
89 ms |
43384 KB |
Output is correct |
13 |
Correct |
90 ms |
43384 KB |
Output is correct |
14 |
Correct |
91 ms |
43384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
504 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
380 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
2 ms |
376 KB |
Output is correct |
27 |
Correct |
2 ms |
376 KB |
Output is correct |
28 |
Correct |
2 ms |
376 KB |
Output is correct |
29 |
Correct |
2 ms |
376 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
31 |
Correct |
2 ms |
376 KB |
Output is correct |
32 |
Correct |
2 ms |
376 KB |
Output is correct |
33 |
Correct |
2 ms |
376 KB |
Output is correct |
34 |
Correct |
2 ms |
376 KB |
Output is correct |
35 |
Correct |
2 ms |
376 KB |
Output is correct |
36 |
Correct |
2 ms |
376 KB |
Output is correct |
37 |
Correct |
2 ms |
376 KB |
Output is correct |
38 |
Correct |
2 ms |
504 KB |
Output is correct |
39 |
Correct |
2 ms |
376 KB |
Output is correct |
40 |
Correct |
3 ms |
376 KB |
Output is correct |
41 |
Correct |
2 ms |
376 KB |
Output is correct |
42 |
Correct |
2 ms |
376 KB |
Output is correct |
43 |
Correct |
2 ms |
504 KB |
Output is correct |
44 |
Correct |
2 ms |
504 KB |
Output is correct |
45 |
Correct |
3 ms |
504 KB |
Output is correct |
46 |
Correct |
2 ms |
504 KB |
Output is correct |
47 |
Correct |
3 ms |
504 KB |
Output is correct |
48 |
Correct |
2 ms |
504 KB |
Output is correct |
49 |
Correct |
2 ms |
376 KB |
Output is correct |
50 |
Correct |
2 ms |
504 KB |
Output is correct |
51 |
Correct |
2 ms |
504 KB |
Output is correct |
52 |
Correct |
2 ms |
504 KB |
Output is correct |
53 |
Correct |
2 ms |
376 KB |
Output is correct |
54 |
Correct |
2 ms |
504 KB |
Output is correct |
55 |
Correct |
2 ms |
380 KB |
Output is correct |
56 |
Correct |
2 ms |
504 KB |
Output is correct |
57 |
Correct |
2 ms |
376 KB |
Output is correct |
58 |
Correct |
2 ms |
504 KB |
Output is correct |
59 |
Correct |
2 ms |
376 KB |
Output is correct |
60 |
Correct |
2 ms |
380 KB |
Output is correct |
61 |
Correct |
2 ms |
376 KB |
Output is correct |
62 |
Correct |
2 ms |
376 KB |
Output is correct |
63 |
Correct |
2 ms |
376 KB |
Output is correct |
64 |
Correct |
2 ms |
376 KB |
Output is correct |
65 |
Correct |
90 ms |
43512 KB |
Output is correct |
66 |
Correct |
96 ms |
43332 KB |
Output is correct |
67 |
Correct |
98 ms |
43376 KB |
Output is correct |
68 |
Correct |
89 ms |
43384 KB |
Output is correct |
69 |
Correct |
92 ms |
43388 KB |
Output is correct |
70 |
Correct |
89 ms |
43384 KB |
Output is correct |
71 |
Correct |
90 ms |
43384 KB |
Output is correct |
72 |
Correct |
91 ms |
43384 KB |
Output is correct |
73 |
Correct |
97 ms |
43392 KB |
Output is correct |
74 |
Correct |
90 ms |
43384 KB |
Output is correct |
75 |
Correct |
92 ms |
43444 KB |
Output is correct |
76 |
Correct |
90 ms |
43384 KB |
Output is correct |
77 |
Correct |
99 ms |
43476 KB |
Output is correct |
78 |
Correct |
91 ms |
43384 KB |
Output is correct |
79 |
Correct |
90 ms |
43384 KB |
Output is correct |
80 |
Correct |
92 ms |
43512 KB |
Output is correct |
81 |
Correct |
93 ms |
43388 KB |
Output is correct |
82 |
Correct |
93 ms |
43384 KB |
Output is correct |
83 |
Correct |
104 ms |
43440 KB |
Output is correct |
84 |
Correct |
102 ms |
43444 KB |
Output is correct |
85 |
Correct |
96 ms |
43384 KB |
Output is correct |
86 |
Correct |
97 ms |
43384 KB |
Output is correct |
87 |
Correct |
98 ms |
43384 KB |
Output is correct |
88 |
Correct |
97 ms |
43384 KB |
Output is correct |
89 |
Correct |
96 ms |
43472 KB |
Output is correct |
90 |
Correct |
97 ms |
43384 KB |
Output is correct |
91 |
Correct |
101 ms |
43384 KB |
Output is correct |
92 |
Correct |
102 ms |
43384 KB |
Output is correct |
93 |
Correct |
103 ms |
43384 KB |
Output is correct |
94 |
Correct |
103 ms |
43384 KB |
Output is correct |
95 |
Correct |
102 ms |
43512 KB |
Output is correct |
96 |
Correct |
103 ms |
43384 KB |
Output is correct |
97 |
Correct |
102 ms |
43384 KB |
Output is correct |
98 |
Correct |
103 ms |
43540 KB |
Output is correct |
99 |
Correct |
102 ms |
43384 KB |
Output is correct |
100 |
Correct |
102 ms |
43384 KB |
Output is correct |
101 |
Correct |
103 ms |
43384 KB |
Output is correct |
102 |
Correct |
103 ms |
43384 KB |
Output is correct |