Submission #588702

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
588702	2022-07-03T21:46:50 Z	jeroenodb	Lamps (JOI19_lamps)	C++14	100 / 100	17 ms	2800 KB

lamp

#include "bits/stdc++.h"
using namespace std;
#define all(x) begin(x),end(x)
template<typename A, typename B> ostream& operator<<(ostream &os, const pair<A, B> &p) { return os << '(' << p.first << ", " << p.second << ')'; }
template<typename T_container, typename T = typename enable_if<!is_same<T_container, string>::value, typename T_container::value_type>::type> ostream& operator<<(ostream &os, const T_container &v) { string sep; for (const T &x : v) os << sep << x, sep = " "; return os; }
#define debug(a) cerr << "(" << #a << ": " << a << ")\n";
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int,int> pi;
const int mxN = 1e5+1, oo = 1e9;
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n; cin >> n;
    string a,b; cin >> a >> b;
    for(auto& i : a) i-='0';
    for(auto& i : b) i-='0';
    for(int i=n-1;i>0;--i) {
        a[i] ^= a[i-1];
        b[i] ^= b[i-1];
    }
    int dp=0,dp2=oo,dp3=oo;
    for(int i=0;i<n;++i) {
        
        int dif = (a[i]!=b[i]);
        tie(dp,dp2,dp3) = make_tuple(min({dp+dif,dp2+dif,dp3+!dif}), min(dp+2+dif,(a[i]?dp3:dp2)+b[i]),min(dp+2+!dif,(a[i]?dp2:dp3)+b[i]) );
        
        
    }
    cout << (min({dp,dp2,dp3})+1)/2;

}

Subtask #1
6.0 / 6.0

#	Verdict	Memory	Grader output
1	Correct	212 KB	Output is correct
2	Correct	212 KB	Output is correct
3	Correct	212 KB	Output is correct
4	Correct	212 KB	Output is correct
5	Correct	212 KB	Output is correct
6	Correct	212 KB	Output is correct
7	Correct	212 KB	Output is correct
8	Correct	212 KB	Output is correct
9	Correct	212 KB	Output is correct
10	Correct	212 KB	Output is correct
11	Correct	212 KB	Output is correct
12	Correct	212 KB	Output is correct
13	Correct	212 KB	Output is correct
14	Correct	212 KB	Output is correct
15	Correct	212 KB	Output is correct
16	Correct	212 KB	Output is correct
17	Correct	212 KB	Output is correct
18	Correct	212 KB	Output is correct
19	Correct	212 KB	Output is correct
20	Correct	212 KB	Output is correct
21	Correct	212 KB	Output is correct
22	Correct	212 KB	Output is correct
23	Correct	212 KB	Output is correct
24	Correct	212 KB	Output is correct
25	Correct	212 KB	Output is correct
26	Correct	212 KB	Output is correct
27	Correct	212 KB	Output is correct
28	Correct	212 KB	Output is correct
29	Correct	212 KB	Output is correct
30	Correct	212 KB	Output is correct
31	Correct	212 KB	Output is correct
32	Correct	212 KB	Output is correct
33	Correct	212 KB	Output is correct
34	Correct	212 KB	Output is correct

Subtask #2
41.0 / 41.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	0 ms	212 KB	Output is correct
26	Correct	0 ms	212 KB	Output is correct
27	Correct	0 ms	212 KB	Output is correct
28	Correct	0 ms	212 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	0 ms	212 KB	Output is correct
31	Correct	0 ms	212 KB	Output is correct
32	Correct	0 ms	212 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	0 ms	212 KB	Output is correct
35	Correct	1 ms	212 KB	Output is correct
36	Correct	0 ms	212 KB	Output is correct
37	Correct	0 ms	212 KB	Output is correct
38	Correct	0 ms	212 KB	Output is correct
39	Correct	0 ms	212 KB	Output is correct
40	Correct	0 ms	212 KB	Output is correct
41	Correct	0 ms	212 KB	Output is correct
42	Correct	0 ms	212 KB	Output is correct
43	Correct	0 ms	212 KB	Output is correct
44	Correct	0 ms	212 KB	Output is correct
45	Correct	0 ms	212 KB	Output is correct
46	Correct	0 ms	212 KB	Output is correct
47	Correct	0 ms	212 KB	Output is correct
48	Correct	0 ms	212 KB	Output is correct
49	Correct	0 ms	212 KB	Output is correct
50	Correct	0 ms	212 KB	Output is correct
51	Correct	0 ms	212 KB	Output is correct
52	Correct	0 ms	212 KB	Output is correct
53	Correct	0 ms	212 KB	Output is correct
54	Correct	0 ms	212 KB	Output is correct
55	Correct	0 ms	212 KB	Output is correct
56	Correct	0 ms	212 KB	Output is correct
57	Correct	0 ms	212 KB	Output is correct
58	Correct	0 ms	212 KB	Output is correct

Subtask #3
4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	12 ms	2672 KB	Output is correct
8	Correct	12 ms	2672 KB	Output is correct
9	Correct	14 ms	2672 KB	Output is correct
10	Correct	12 ms	2672 KB	Output is correct
11	Correct	12 ms	2672 KB	Output is correct
12	Correct	12 ms	2672 KB	Output is correct
13	Correct	12 ms	2672 KB	Output is correct
14	Correct	12 ms	2732 KB	Output is correct

Subtask #4
49.0 / 49.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	0 ms	212 KB	Output is correct
26	Correct	0 ms	212 KB	Output is correct
27	Correct	0 ms	212 KB	Output is correct
28	Correct	0 ms	212 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	0 ms	212 KB	Output is correct
31	Correct	0 ms	212 KB	Output is correct
32	Correct	0 ms	212 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	0 ms	212 KB	Output is correct
35	Correct	1 ms	212 KB	Output is correct
36	Correct	0 ms	212 KB	Output is correct
37	Correct	0 ms	212 KB	Output is correct
38	Correct	0 ms	212 KB	Output is correct
39	Correct	0 ms	212 KB	Output is correct
40	Correct	0 ms	212 KB	Output is correct
41	Correct	0 ms	212 KB	Output is correct
42	Correct	0 ms	212 KB	Output is correct
43	Correct	0 ms	212 KB	Output is correct
44	Correct	0 ms	212 KB	Output is correct
45	Correct	0 ms	212 KB	Output is correct
46	Correct	0 ms	212 KB	Output is correct
47	Correct	0 ms	212 KB	Output is correct
48	Correct	0 ms	212 KB	Output is correct
49	Correct	0 ms	212 KB	Output is correct
50	Correct	0 ms	212 KB	Output is correct
51	Correct	0 ms	212 KB	Output is correct
52	Correct	0 ms	212 KB	Output is correct
53	Correct	0 ms	212 KB	Output is correct
54	Correct	0 ms	212 KB	Output is correct
55	Correct	0 ms	212 KB	Output is correct
56	Correct	0 ms	212 KB	Output is correct
57	Correct	0 ms	212 KB	Output is correct
58	Correct	0 ms	212 KB	Output is correct
59	Correct	0 ms	212 KB	Output is correct
60	Correct	0 ms	212 KB	Output is correct
61	Correct	0 ms	212 KB	Output is correct
62	Correct	0 ms	212 KB	Output is correct
63	Correct	0 ms	212 KB	Output is correct
64	Correct	0 ms	212 KB	Output is correct
65	Correct	12 ms	2672 KB	Output is correct
66	Correct	12 ms	2672 KB	Output is correct
67	Correct	14 ms	2672 KB	Output is correct
68	Correct	12 ms	2672 KB	Output is correct
69	Correct	12 ms	2672 KB	Output is correct
70	Correct	12 ms	2672 KB	Output is correct
71	Correct	12 ms	2672 KB	Output is correct
72	Correct	12 ms	2732 KB	Output is correct
73	Correct	13 ms	2800 KB	Output is correct
74	Correct	12 ms	2672 KB	Output is correct
75	Correct	13 ms	2672 KB	Output is correct
76	Correct	12 ms	2672 KB	Output is correct
77	Correct	13 ms	2672 KB	Output is correct
78	Correct	12 ms	2672 KB	Output is correct
79	Correct	13 ms	2672 KB	Output is correct
80	Correct	13 ms	2672 KB	Output is correct
81	Correct	12 ms	2664 KB	Output is correct
82	Correct	13 ms	2672 KB	Output is correct
83	Correct	16 ms	2672 KB	Output is correct
84	Correct	16 ms	2672 KB	Output is correct
85	Correct	16 ms	2672 KB	Output is correct
86	Correct	16 ms	2672 KB	Output is correct
87	Correct	16 ms	2672 KB	Output is correct
88	Correct	16 ms	2672 KB	Output is correct
89	Correct	16 ms	2672 KB	Output is correct
90	Correct	17 ms	2672 KB	Output is correct
91	Correct	16 ms	2672 KB	Output is correct
92	Correct	16 ms	2672 KB	Output is correct
93	Correct	16 ms	2672 KB	Output is correct
94	Correct	16 ms	2672 KB	Output is correct
95	Correct	15 ms	2672 KB	Output is correct
96	Correct	16 ms	2672 KB	Output is correct
97	Correct	15 ms	2672 KB	Output is correct
98	Correct	16 ms	2672 KB	Output is correct
99	Correct	15 ms	2672 KB	Output is correct
100	Correct	16 ms	2672 KB	Output is correct
101	Correct	16 ms	2672 KB	Output is correct
102	Correct	16 ms	2736 KB	Output is correct

Submission #588702

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 41.0 / 41.0

Subtask #3 4.0 / 4.0

Subtask #4 49.0 / 49.0

Subtask #1
6.0 / 6.0

Subtask #2
41.0 / 41.0

Subtask #3
4.0 / 4.0

Subtask #4
49.0 / 49.0