oj.uz

Submission #410312

# Submission time Handle Problem Language Result Execution time Memory
410312 2021-05-22T13:30:32 Z amoo_safar Lamps (JOI19_lamps) C++17
100 / 100
 176 ms 4456 KB 
// vaziat meshki-ghermeze !
#include <bits/stdc++.h>

#define pb push_back
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define debug(x) cerr << #x << " : " << x << '\n'

using namespace std;

typedef long long ll;
typedef long double ld;
typedef string str;
typedef pair<ll, ll> pll;

const ll Mod = 1000000007LL;
const int N = 2e5 + 10;
const ll Inf = 2242545357980376863LL;
const ll Log = 30;

int dp[4][2];
int nx[4][2];


int main(){
	ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	int n;
	str A, B;
	cin >> n;
	cin >> A >> B;

	memset(dp, 31, sizeof dp);
	dp[0][0] = 0;
	for(int i = 0; i < n; i++){
		int nw = A[i] - '0';
		int rq = B[i] - '0';
		memset(nx, 31, sizeof nx);
		for(int bl = 0; bl < 4; bl ++) for(int xo = 0; xo < 2; xo ++) for(int set = 0; set < 3; set ++){
			int co = set == 2 ? nw : set;
			
			int xxor = co != rq;
			int nw_bl = 1;
			int la = -1;
			if(i > 0){
				if(bl > 0)
					la = (B[i-1]-'0') ^ xo;
			}
			if(set == 2) nw_bl = 0;
			else {
				if(i == 0)
					nw_bl = 1;
				else
					nw_bl = bl + (la != set);
			}
			bool change = nw_bl != bl;

			if(nw_bl == 4)
				nw_bl = 2;
			nx[nw_bl][xxor] = min(nx[nw_bl][xxor], dp[bl][xo] + (((nw_bl == 1) || (nw_bl == 2)) && change) + (xxor > xo));
		}
		swap(nx, dp);
	}
	int ans = n;
	for(int i = 0; i < 8; i++)
		ans = min(ans, dp[i >> 1][i & 1]);
	cout << ans << '\n';
	return 0;
}
/*
7
1010010
0000111

4
1010
0000

*/

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory 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 204 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 204 KB Output is correct
16 Correct 1 ms 204 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 204 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 204 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 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory 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 204 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 204 KB Output is correct
16 Correct 1 ms 204 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 204 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 204 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 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 1 ms 204 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 204 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 2 ms 300 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 1 ms 308 KB Output is correct
47 Correct 1 ms 316 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 204 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 308 KB Output is correct
55 Correct 1 ms 204 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

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory 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 160 ms 2664 KB Output is correct
8 Correct 159 ms 2664 KB Output is correct
9 Correct 158 ms 2664 KB Output is correct
10 Correct 158 ms 2664 KB Output is correct
11 Correct 167 ms 2664 KB Output is correct
12 Correct 149 ms 2664 KB Output is correct
13 Correct 152 ms 2664 KB Output is correct
14 Correct 150 ms 2664 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory 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 204 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 204 KB Output is correct
16 Correct 1 ms 204 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 204 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 204 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 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 1 ms 204 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 204 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 2 ms 300 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 1 ms 308 KB Output is correct
47 Correct 1 ms 316 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 204 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 308 KB Output is correct
55 Correct 1 ms 204 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 160 ms 2664 KB Output is correct
66 Correct 159 ms 2664 KB Output is correct
67 Correct 158 ms 2664 KB Output is correct
68 Correct 158 ms 2664 KB Output is correct
69 Correct 167 ms 2664 KB Output is correct
70 Correct 149 ms 2664 KB Output is correct
71 Correct 152 ms 2664 KB Output is correct
72 Correct 150 ms 2664 KB Output is correct
73 Correct 154 ms 4368 KB Output is correct
74 Correct 162 ms 4384 KB Output is correct
75 Correct 159 ms 4340 KB Output is correct
76 Correct 160 ms 4368 KB Output is correct
77 Correct 159 ms 4352 KB Output is correct
78 Correct 170 ms 4356 KB Output is correct
79 Correct 160 ms 4328 KB Output is correct
80 Correct 160 ms 4372 KB Output is correct
81 Correct 160 ms 4328 KB Output is correct
82 Correct 172 ms 4368 KB Output is correct
83 Correct 153 ms 4356 KB Output is correct
84 Correct 152 ms 4356 KB Output is correct
85 Correct 174 ms 4328 KB Output is correct
86 Correct 151 ms 4352 KB Output is correct
87 Correct 153 ms 4364 KB Output is correct
88 Correct 157 ms 4388 KB Output is correct
89 Correct 173 ms 4396 KB Output is correct
90 Correct 153 ms 4404 KB Output is correct
91 Correct 155 ms 4356 KB Output is correct
92 Correct 156 ms 4348 KB Output is correct
93 Correct 157 ms 4328 KB Output is correct
94 Correct 157 ms 4356 KB Output is correct
95 Correct 160 ms 4456 KB Output is correct
96 Correct 158 ms 4392 KB Output is correct
97 Correct 161 ms 4364 KB Output is correct
98 Correct 156 ms 4372 KB Output is correct
99 Correct 156 ms 4376 KB Output is correct
100 Correct 157 ms 4352 KB Output is correct
101 Correct 176 ms 4360 KB Output is correct
102 Correct 156 ms 4372 KB Output is correct