oj.uz

Submission #112270

# Submission time Handle Problem Language Result Execution time Memory
112270 2019-05-18T08:36:24 Z gs14004 Lamps (JOI19_lamps) C++17
100 / 100
 88 ms 23928 KB 
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1000005;
using pi = pair<int, int>;

int n;
char s[MAXN], t[MAXN];
int dp[MAXN][5];

int getCost(int x, int p){
	char c = x + '0';
	if(c == '2') c = s[p];
	return c != t[p];
}

int moveCost(int p1, int p2, int x1, int x2){ 
	x1 /= 2, x2 /= 2;
	int arg1 = getCost(x1, p1) != getCost(x2, p2);
	int arg2 = x1 != x2;
	return arg1 + arg2;
}

int adj[5][5] = {
	{1, 0, 1, 0, 1},
	{0, 1, 0, 1, 1},
	{1, 0, 1, 0, 1},
	{0, 1, 0, 1, 1},
	{1, 0, 0, 1, 1}};

int main(){
	scanf("%d %s %s",&n,s+1,t+1);
	fill(dp[0], dp[0] + 4, 1e9);
	t[0] = '0'; t[n+1] = '0';
	s[0] = '0', s[n+1] = '0';
	for(int i=1; i<=n+1; i++){
		for(int j=0; j<5; j++){
			dp[i][j] = 1e9;
			for(int k=0; k<5; k++){
				if(!adj[k][j]) continue;
				dp[i][j] = min(dp[i][j], dp[i-1][k] + moveCost(i-1, i, k, j) + (j == 4 && (k == 1 || k == 2)));
			}

		}
	}
	cout << dp[n+1][4] / 2<< endl;
}

Compilation message

lamp.cpp: In function 'int main()':
lamp.cpp:31:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %s %s",&n,s+1,t+1);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 284 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 2 ms 384 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 2 ms 384 KB Output is correct
23 Correct 2 ms 384 KB Output is correct
24 Correct 2 ms 384 KB Output is correct
25 Correct 2 ms 384 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 2 ms 384 KB Output is correct
29 Correct 2 ms 384 KB Output is correct
30 Correct 2 ms 384 KB Output is correct
31 Correct 2 ms 384 KB Output is correct
32 Correct 2 ms 384 KB Output is correct
33 Correct 2 ms 384 KB Output is correct
34 Correct 2 ms 384 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 284 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 2 ms 384 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 2 ms 384 KB Output is correct
23 Correct 2 ms 384 KB Output is correct
24 Correct 2 ms 384 KB Output is correct
25 Correct 2 ms 384 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 2 ms 384 KB Output is correct
29 Correct 2 ms 384 KB Output is correct
30 Correct 2 ms 384 KB Output is correct
31 Correct 2 ms 384 KB Output is correct
32 Correct 2 ms 384 KB Output is correct
33 Correct 2 ms 384 KB Output is correct
34 Correct 2 ms 384 KB Output is correct
35 Correct 2 ms 384 KB Output is correct
36 Correct 2 ms 384 KB Output is correct
37 Correct 2 ms 384 KB Output is correct
38 Correct 2 ms 384 KB Output is correct
39 Correct 2 ms 384 KB Output is correct
40 Correct 2 ms 384 KB Output is correct
41 Correct 2 ms 512 KB Output is correct
42 Correct 2 ms 384 KB Output is correct
43 Correct 2 ms 384 KB Output is correct
44 Correct 2 ms 384 KB Output is correct
45 Correct 2 ms 384 KB Output is correct
46 Correct 2 ms 384 KB Output is correct
47 Correct 2 ms 408 KB Output is correct
48 Correct 2 ms 384 KB Output is correct
49 Correct 2 ms 384 KB Output is correct
50 Correct 2 ms 384 KB Output is correct
51 Correct 3 ms 384 KB Output is correct
52 Correct 2 ms 384 KB Output is correct
53 Correct 2 ms 384 KB Output is correct
54 Correct 2 ms 384 KB Output is correct
55 Correct 2 ms 384 KB Output is correct
56 Correct 2 ms 384 KB Output is correct
57 Correct 2 ms 384 KB Output is correct
58 Correct 2 ms 384 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 80 ms 23800 KB Output is correct
8 Correct 86 ms 23772 KB Output is correct
9 Correct 83 ms 23800 KB Output is correct
10 Correct 80 ms 23800 KB Output is correct
11 Correct 80 ms 23800 KB Output is correct
12 Correct 82 ms 23800 KB Output is correct
13 Correct 88 ms 23928 KB Output is correct
14 Correct 85 ms 23800 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 284 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 2 ms 384 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 2 ms 384 KB Output is correct
23 Correct 2 ms 384 KB Output is correct
24 Correct 2 ms 384 KB Output is correct
25 Correct 2 ms 384 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 2 ms 384 KB Output is correct
29 Correct 2 ms 384 KB Output is correct
30 Correct 2 ms 384 KB Output is correct
31 Correct 2 ms 384 KB Output is correct
32 Correct 2 ms 384 KB Output is correct
33 Correct 2 ms 384 KB Output is correct
34 Correct 2 ms 384 KB Output is correct
35 Correct 2 ms 384 KB Output is correct
36 Correct 2 ms 384 KB Output is correct
37 Correct 2 ms 384 KB Output is correct
38 Correct 2 ms 384 KB Output is correct
39 Correct 2 ms 384 KB Output is correct
40 Correct 2 ms 384 KB Output is correct
41 Correct 2 ms 512 KB Output is correct
42 Correct 2 ms 384 KB Output is correct
43 Correct 2 ms 384 KB Output is correct
44 Correct 2 ms 384 KB Output is correct
45 Correct 2 ms 384 KB Output is correct
46 Correct 2 ms 384 KB Output is correct
47 Correct 2 ms 408 KB Output is correct
48 Correct 2 ms 384 KB Output is correct
49 Correct 2 ms 384 KB Output is correct
50 Correct 2 ms 384 KB Output is correct
51 Correct 3 ms 384 KB Output is correct
52 Correct 2 ms 384 KB Output is correct
53 Correct 2 ms 384 KB Output is correct
54 Correct 2 ms 384 KB Output is correct
55 Correct 2 ms 384 KB Output is correct
56 Correct 2 ms 384 KB Output is correct
57 Correct 2 ms 384 KB Output is correct
58 Correct 2 ms 384 KB Output is correct
59 Correct 2 ms 384 KB Output is correct
60 Correct 2 ms 384 KB Output is correct
61 Correct 2 ms 384 KB Output is correct
62 Correct 2 ms 384 KB Output is correct
63 Correct 2 ms 384 KB Output is correct
64 Correct 2 ms 384 KB Output is correct
65 Correct 80 ms 23800 KB Output is correct
66 Correct 86 ms 23772 KB Output is correct
67 Correct 83 ms 23800 KB Output is correct
68 Correct 80 ms 23800 KB Output is correct
69 Correct 80 ms 23800 KB Output is correct
70 Correct 82 ms 23800 KB Output is correct
71 Correct 88 ms 23928 KB Output is correct
72 Correct 85 ms 23800 KB Output is correct
73 Correct 80 ms 23800 KB Output is correct
74 Correct 81 ms 23800 KB Output is correct
75 Correct 80 ms 23928 KB Output is correct
76 Correct 81 ms 23800 KB Output is correct
77 Correct 80 ms 23772 KB Output is correct
78 Correct 81 ms 23800 KB Output is correct
79 Correct 80 ms 23800 KB Output is correct
80 Correct 80 ms 23800 KB Output is correct
81 Correct 80 ms 23820 KB Output is correct
82 Correct 80 ms 23800 KB Output is correct
83 Correct 81 ms 23804 KB Output is correct
84 Correct 81 ms 23828 KB Output is correct
85 Correct 80 ms 23876 KB Output is correct
86 Correct 82 ms 23800 KB Output is correct
87 Correct 81 ms 23768 KB Output is correct
88 Correct 82 ms 23796 KB Output is correct
89 Correct 81 ms 23772 KB Output is correct
90 Correct 80 ms 23772 KB Output is correct
91 Correct 85 ms 23800 KB Output is correct
92 Correct 81 ms 23832 KB Output is correct
93 Correct 80 ms 23800 KB Output is correct
94 Correct 82 ms 23804 KB Output is correct
95 Correct 83 ms 23800 KB Output is correct
96 Correct 81 ms 23800 KB Output is correct
97 Correct 81 ms 23800 KB Output is correct
98 Correct 80 ms 23800 KB Output is correct
99 Correct 81 ms 23928 KB Output is correct
100 Correct 80 ms 23800 KB Output is correct
101 Correct 79 ms 23800 KB Output is correct
102 Correct 80 ms 23800 KB Output is correct