oj.uz

Submission #211170

# Submission time Handle Problem Language Result Execution time Memory
211170 2020-03-19T10:52:05 Z amiratou Lamps (JOI19_lamps) C++14
100 / 100
 49 ms 3612 KB 
#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define boost ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define rando mt19937 rng(chrono::steady_clock::now().time_since_epoch().count())
#define fi first
#define se second
#define debug(x) cerr << " - " << #x << ": " << x << endl;
#define debugs(x, y) cerr << " - " << #x << ": " << x << " " << #y << ": " << y << endl;
#define debugii(x) cerr << " - " << #x << ": " << x.fi<<","<<x.se << endl;
#define sep() cerr << "--------------------" << endl;
#define all(x) (x).begin(),(x).end()
#define sz(x) (ll)x.size()
#define ld long double
#define ll long long
//#define int ll
#define ii pair<int,int>
#define v vector<int>
#define vii vector<ii>
#define vv vector<vector<int> >
#define mp make_pair
#define INF 1000000000
#define pb push_back
#define EPS 1e-9
const int MOD = 1000000007; // 998244353
int dp[2][2][3],n;
string A,B;
char conv(char a,int t,int s){
	if(!s)a='0';
	if(s==1)a='1';
	if(t)a=(char)(1-(int)(a-'0')+'0');
	return a;
}
int32_t main(){
	boost;
	//freopen(".in","r",stdin);
	cin>>n>>A>>B;
	for (int i = 0; i < 2; ++i)
		for (int j = 0; j < 2; ++j)
			for (int z = 0; z < 3; ++z)
				dp[i][j][z]=INF;
	dp[0][0][2]=0;
	for (int idx = 0; idx < n; ++idx)
	{
		for (int t = 0; t < 2; ++t)
			for (int s = 0; s < 3; ++s)
				for (int i = 0; i < 2; ++i)
					for (int j = 0; j < 3; ++j)
					{
						int cost=0;
						cost+=(i?(i!=t):0)+((j!=2)?(j!=s):0);
						if(conv(A[idx],i,j)!=B[idx])continue;
						dp[(idx+1)&1][i][j]=min(dp[(idx+1)&1][i][j],dp[idx&1][t][s]+cost);
					}
		for (int j = 0; j < 2; ++j)
			for (int z = 0; z < 3; ++z)
				dp[idx&1][j][z]=INF;
	}
	int ans=INF;
	for (int i = 0; i < 2; ++i)
		for (int j = 0; j < 3; ++j)ans=min(ans,dp[n&1][i][j]);
	cout<<ans;
	return 0;
}
//long long
//array bounds
//special cases
//binary search

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 512 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 512 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct
37 Correct 5 ms 384 KB Output is correct
38 Correct 5 ms 384 KB Output is correct
39 Correct 5 ms 384 KB Output is correct
40 Correct 5 ms 384 KB Output is correct
41 Correct 5 ms 384 KB Output is correct
42 Correct 5 ms 384 KB Output is correct
43 Correct 5 ms 384 KB Output is correct
44 Correct 5 ms 384 KB Output is correct
45 Correct 5 ms 384 KB Output is correct
46 Correct 5 ms 384 KB Output is correct
47 Correct 5 ms 384 KB Output is correct
48 Correct 5 ms 384 KB Output is correct
49 Correct 5 ms 384 KB Output is correct
50 Correct 5 ms 384 KB Output is correct
51 Correct 5 ms 384 KB Output is correct
52 Correct 5 ms 384 KB Output is correct
53 Correct 5 ms 384 KB Output is correct
54 Correct 5 ms 384 KB Output is correct
55 Correct 5 ms 384 KB Output is correct
56 Correct 5 ms 384 KB Output is correct
57 Correct 5 ms 384 KB Output is correct
58 Correct 5 ms 384 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 36 ms 3612 KB Output is correct
8 Correct 37 ms 3612 KB Output is correct
9 Correct 36 ms 3612 KB Output is correct
10 Correct 37 ms 3612 KB Output is correct
11 Correct 37 ms 3612 KB Output is correct
12 Correct 36 ms 3612 KB Output is correct
13 Correct 36 ms 3612 KB Output is correct
14 Correct 36 ms 3612 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 512 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct
37 Correct 5 ms 384 KB Output is correct
38 Correct 5 ms 384 KB Output is correct
39 Correct 5 ms 384 KB Output is correct
40 Correct 5 ms 384 KB Output is correct
41 Correct 5 ms 384 KB Output is correct
42 Correct 5 ms 384 KB Output is correct
43 Correct 5 ms 384 KB Output is correct
44 Correct 5 ms 384 KB Output is correct
45 Correct 5 ms 384 KB Output is correct
46 Correct 5 ms 384 KB Output is correct
47 Correct 5 ms 384 KB Output is correct
48 Correct 5 ms 384 KB Output is correct
49 Correct 5 ms 384 KB Output is correct
50 Correct 5 ms 384 KB Output is correct
51 Correct 5 ms 384 KB Output is correct
52 Correct 5 ms 384 KB Output is correct
53 Correct 5 ms 384 KB Output is correct
54 Correct 5 ms 384 KB Output is correct
55 Correct 5 ms 384 KB Output is correct
56 Correct 5 ms 384 KB Output is correct
57 Correct 5 ms 384 KB Output is correct
58 Correct 5 ms 384 KB Output is correct
59 Correct 5 ms 384 KB Output is correct
60 Correct 5 ms 384 KB Output is correct
61 Correct 5 ms 384 KB Output is correct
62 Correct 5 ms 384 KB Output is correct
63 Correct 5 ms 384 KB Output is correct
64 Correct 5 ms 384 KB Output is correct
65 Correct 36 ms 3612 KB Output is correct
66 Correct 37 ms 3612 KB Output is correct
67 Correct 36 ms 3612 KB Output is correct
68 Correct 37 ms 3612 KB Output is correct
69 Correct 37 ms 3612 KB Output is correct
70 Correct 36 ms 3612 KB Output is correct
71 Correct 36 ms 3612 KB Output is correct
72 Correct 36 ms 3612 KB Output is correct
73 Correct 37 ms 3356 KB Output is correct
74 Correct 37 ms 3356 KB Output is correct
75 Correct 36 ms 3356 KB Output is correct
76 Correct 36 ms 3356 KB Output is correct
77 Correct 36 ms 3356 KB Output is correct
78 Correct 37 ms 3408 KB Output is correct
79 Correct 37 ms 3356 KB Output is correct
80 Correct 36 ms 3356 KB Output is correct
81 Correct 38 ms 3356 KB Output is correct
82 Correct 38 ms 3356 KB Output is correct
83 Correct 42 ms 3288 KB Output is correct
84 Correct 41 ms 3356 KB Output is correct
85 Correct 42 ms 3356 KB Output is correct
86 Correct 42 ms 3356 KB Output is correct
87 Correct 42 ms 3484 KB Output is correct
88 Correct 44 ms 3356 KB Output is correct
89 Correct 42 ms 3356 KB Output is correct
90 Correct 42 ms 3356 KB Output is correct
91 Correct 46 ms 3356 KB Output is correct
92 Correct 45 ms 3348 KB Output is correct
93 Correct 49 ms 3356 KB Output is correct
94 Correct 49 ms 3356 KB Output is correct
95 Correct 46 ms 3356 KB Output is correct
96 Correct 46 ms 3356 KB Output is correct
97 Correct 46 ms 3356 KB Output is correct
98 Correct 47 ms 3356 KB Output is correct
99 Correct 46 ms 3348 KB Output is correct
100 Correct 47 ms 3356 KB Output is correct
101 Correct 48 ms 3356 KB Output is correct
102 Correct 46 ms 3356 KB Output is correct