oj.uz

Submission #210734

# Submission time Handle Problem Language Result Execution time Memory
210734 2020-03-18T08:25:32 Z arman_ferdous Lamps (JOI19_lamps) C++17
100 / 100
 252 ms 113912 KB 
#include <bits/stdc++.h>
using namespace std;

using ll = long long;
const int N = 1e6+10;
const int oo = 1e9;

int n, ans;
char a[N], b[N];

int dp[8][N];

int get(int x, int mask) {
	if(mask & 1) x = 0;
	if(mask & 2) x = 1;
	if(mask & 4) x ^= 1;
	return x;
}

int DP(int prev, int pos) {
	if(pos < 0) return 0;
	if(dp[prev][pos] != -1) return dp[prev][pos];

	int &ret = dp[prev][pos]; ret = oo;
	for(int i = 0; i < 7; i++)
		if(get(a[pos] - '0', i) == b[pos] - '0')
			ret = min(ret, __builtin_popcount(~prev & i) + DP(i, pos - 1));
	return ret;
}

int main() {
	scanf("%d", &n);	
	scanf(" %s %s", a, b);
    memset(dp, -1, sizeof dp);
    printf("%d\n", DP(0, n - 1));
	return 0;
}

Compilation message

lamp.cpp: In function 'int main()':
lamp.cpp:32:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n); 
  ~~~~~^~~~~~~~~~
lamp.cpp:33:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf(" %s %s", a, b);
  ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 31608 KB Output is correct
2 Correct 21 ms 31608 KB Output is correct
3 Correct 20 ms 31608 KB Output is correct
4 Correct 20 ms 31608 KB Output is correct
5 Correct 20 ms 31608 KB Output is correct
6 Correct 19 ms 31608 KB Output is correct
7 Correct 20 ms 31608 KB Output is correct
8 Correct 19 ms 31608 KB Output is correct
9 Correct 20 ms 31608 KB Output is correct
10 Correct 19 ms 31608 KB Output is correct
11 Correct 21 ms 31608 KB Output is correct
12 Correct 20 ms 31608 KB Output is correct
13 Correct 20 ms 31656 KB Output is correct
14 Correct 19 ms 31608 KB Output is correct
15 Correct 20 ms 31608 KB Output is correct
16 Correct 21 ms 31608 KB Output is correct
17 Correct 22 ms 31608 KB Output is correct
18 Correct 21 ms 31656 KB Output is correct
19 Correct 20 ms 31608 KB Output is correct
20 Correct 20 ms 31608 KB Output is correct
21 Correct 21 ms 31608 KB Output is correct
22 Correct 21 ms 31608 KB Output is correct
23 Correct 20 ms 31608 KB Output is correct
24 Correct 20 ms 31608 KB Output is correct
25 Correct 21 ms 31612 KB Output is correct
26 Correct 20 ms 31608 KB Output is correct
27 Correct 20 ms 31608 KB Output is correct
28 Correct 20 ms 31608 KB Output is correct
29 Correct 21 ms 31608 KB Output is correct
30 Correct 20 ms 31608 KB Output is correct
31 Correct 20 ms 31608 KB Output is correct
32 Correct 20 ms 31608 KB Output is correct
33 Correct 20 ms 31608 KB Output is correct
34 Correct 19 ms 31608 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 31608 KB Output is correct
2 Correct 21 ms 31608 KB Output is correct
3 Correct 20 ms 31608 KB Output is correct
4 Correct 20 ms 31608 KB Output is correct
5 Correct 20 ms 31608 KB Output is correct
6 Correct 19 ms 31608 KB Output is correct
7 Correct 20 ms 31608 KB Output is correct
8 Correct 19 ms 31608 KB Output is correct
9 Correct 20 ms 31608 KB Output is correct
10 Correct 19 ms 31608 KB Output is correct
11 Correct 21 ms 31608 KB Output is correct
12 Correct 20 ms 31608 KB Output is correct
13 Correct 20 ms 31656 KB Output is correct
14 Correct 19 ms 31608 KB Output is correct
15 Correct 20 ms 31608 KB Output is correct
16 Correct 21 ms 31608 KB Output is correct
17 Correct 22 ms 31608 KB Output is correct
18 Correct 21 ms 31656 KB Output is correct
19 Correct 20 ms 31608 KB Output is correct
20 Correct 20 ms 31608 KB Output is correct
21 Correct 21 ms 31608 KB Output is correct
22 Correct 21 ms 31608 KB Output is correct
23 Correct 20 ms 31608 KB Output is correct
24 Correct 20 ms 31608 KB Output is correct
25 Correct 21 ms 31612 KB Output is correct
26 Correct 20 ms 31608 KB Output is correct
27 Correct 20 ms 31608 KB Output is correct
28 Correct 20 ms 31608 KB Output is correct
29 Correct 21 ms 31608 KB Output is correct
30 Correct 20 ms 31608 KB Output is correct
31 Correct 20 ms 31608 KB Output is correct
32 Correct 20 ms 31608 KB Output is correct
33 Correct 20 ms 31608 KB Output is correct
34 Correct 19 ms 31608 KB Output is correct
35 Correct 21 ms 31736 KB Output is correct
36 Correct 20 ms 31784 KB Output is correct
37 Correct 20 ms 31736 KB Output is correct
38 Correct 21 ms 31736 KB Output is correct
39 Correct 20 ms 31736 KB Output is correct
40 Correct 21 ms 31736 KB Output is correct
41 Correct 21 ms 31736 KB Output is correct
42 Correct 22 ms 31736 KB Output is correct
43 Correct 20 ms 31736 KB Output is correct
44 Correct 21 ms 31736 KB Output is correct
45 Correct 21 ms 31736 KB Output is correct
46 Correct 21 ms 31736 KB Output is correct
47 Correct 20 ms 31736 KB Output is correct
48 Correct 21 ms 31864 KB Output is correct
49 Correct 22 ms 31864 KB Output is correct
50 Correct 21 ms 31740 KB Output is correct
51 Correct 21 ms 31736 KB Output is correct
52 Correct 20 ms 31736 KB Output is correct
53 Correct 21 ms 31736 KB Output is correct
54 Correct 20 ms 31736 KB Output is correct
55 Correct 21 ms 31740 KB Output is correct
56 Correct 20 ms 31864 KB Output is correct
57 Correct 21 ms 31740 KB Output is correct
58 Correct 20 ms 31736 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 31608 KB Output is correct
2 Correct 20 ms 31608 KB Output is correct
3 Correct 20 ms 31608 KB Output is correct
4 Correct 21 ms 31608 KB Output is correct
5 Correct 20 ms 31608 KB Output is correct
6 Correct 20 ms 31608 KB Output is correct
7 Correct 168 ms 113784 KB Output is correct
8 Correct 211 ms 113784 KB Output is correct
9 Correct 210 ms 113784 KB Output is correct
10 Correct 208 ms 113784 KB Output is correct
11 Correct 205 ms 113784 KB Output is correct
12 Correct 245 ms 113784 KB Output is correct
13 Correct 227 ms 113784 KB Output is correct
14 Correct 208 ms 113784 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 31608 KB Output is correct
2 Correct 21 ms 31608 KB Output is correct
3 Correct 20 ms 31608 KB Output is correct
4 Correct 20 ms 31608 KB Output is correct
5 Correct 20 ms 31608 KB Output is correct
6 Correct 19 ms 31608 KB Output is correct
7 Correct 20 ms 31608 KB Output is correct
8 Correct 19 ms 31608 KB Output is correct
9 Correct 20 ms 31608 KB Output is correct
10 Correct 19 ms 31608 KB Output is correct
11 Correct 21 ms 31608 KB Output is correct
12 Correct 20 ms 31608 KB Output is correct
13 Correct 20 ms 31656 KB Output is correct
14 Correct 19 ms 31608 KB Output is correct
15 Correct 20 ms 31608 KB Output is correct
16 Correct 21 ms 31608 KB Output is correct
17 Correct 22 ms 31608 KB Output is correct
18 Correct 21 ms 31656 KB Output is correct
19 Correct 20 ms 31608 KB Output is correct
20 Correct 20 ms 31608 KB Output is correct
21 Correct 21 ms 31608 KB Output is correct
22 Correct 21 ms 31608 KB Output is correct
23 Correct 20 ms 31608 KB Output is correct
24 Correct 20 ms 31608 KB Output is correct
25 Correct 21 ms 31612 KB Output is correct
26 Correct 20 ms 31608 KB Output is correct
27 Correct 20 ms 31608 KB Output is correct
28 Correct 20 ms 31608 KB Output is correct
29 Correct 21 ms 31608 KB Output is correct
30 Correct 20 ms 31608 KB Output is correct
31 Correct 20 ms 31608 KB Output is correct
32 Correct 20 ms 31608 KB Output is correct
33 Correct 20 ms 31608 KB Output is correct
34 Correct 19 ms 31608 KB Output is correct
35 Correct 21 ms 31736 KB Output is correct
36 Correct 20 ms 31784 KB Output is correct
37 Correct 20 ms 31736 KB Output is correct
38 Correct 21 ms 31736 KB Output is correct
39 Correct 20 ms 31736 KB Output is correct
40 Correct 21 ms 31736 KB Output is correct
41 Correct 21 ms 31736 KB Output is correct
42 Correct 22 ms 31736 KB Output is correct
43 Correct 20 ms 31736 KB Output is correct
44 Correct 21 ms 31736 KB Output is correct
45 Correct 21 ms 31736 KB Output is correct
46 Correct 21 ms 31736 KB Output is correct
47 Correct 20 ms 31736 KB Output is correct
48 Correct 21 ms 31864 KB Output is correct
49 Correct 22 ms 31864 KB Output is correct
50 Correct 21 ms 31740 KB Output is correct
51 Correct 21 ms 31736 KB Output is correct
52 Correct 20 ms 31736 KB Output is correct
53 Correct 21 ms 31736 KB Output is correct
54 Correct 20 ms 31736 KB Output is correct
55 Correct 21 ms 31740 KB Output is correct
56 Correct 20 ms 31864 KB Output is correct
57 Correct 21 ms 31740 KB Output is correct
58 Correct 20 ms 31736 KB Output is correct
59 Correct 21 ms 31608 KB Output is correct
60 Correct 20 ms 31608 KB Output is correct
61 Correct 20 ms 31608 KB Output is correct
62 Correct 21 ms 31608 KB Output is correct
63 Correct 20 ms 31608 KB Output is correct
64 Correct 20 ms 31608 KB Output is correct
65 Correct 168 ms 113784 KB Output is correct
66 Correct 211 ms 113784 KB Output is correct
67 Correct 210 ms 113784 KB Output is correct
68 Correct 208 ms 113784 KB Output is correct
69 Correct 205 ms 113784 KB Output is correct
70 Correct 245 ms 113784 KB Output is correct
71 Correct 227 ms 113784 KB Output is correct
72 Correct 208 ms 113784 KB Output is correct
73 Correct 175 ms 113784 KB Output is correct
74 Correct 211 ms 113784 KB Output is correct
75 Correct 207 ms 113824 KB Output is correct
76 Correct 208 ms 113784 KB Output is correct
77 Correct 208 ms 113784 KB Output is correct
78 Correct 211 ms 113784 KB Output is correct
79 Correct 206 ms 113784 KB Output is correct
80 Correct 216 ms 113784 KB Output is correct
81 Correct 207 ms 113784 KB Output is correct
82 Correct 208 ms 113784 KB Output is correct
83 Correct 231 ms 113784 KB Output is correct
84 Correct 231 ms 113784 KB Output is correct
85 Correct 230 ms 113784 KB Output is correct
86 Correct 230 ms 113784 KB Output is correct
87 Correct 231 ms 113784 KB Output is correct
88 Correct 233 ms 113784 KB Output is correct
89 Correct 252 ms 113788 KB Output is correct
90 Correct 241 ms 113784 KB Output is correct
91 Correct 243 ms 113784 KB Output is correct
92 Correct 244 ms 113788 KB Output is correct
93 Correct 244 ms 113784 KB Output is correct
94 Correct 246 ms 113784 KB Output is correct
95 Correct 247 ms 113784 KB Output is correct
96 Correct 245 ms 113784 KB Output is correct
97 Correct 246 ms 113784 KB Output is correct
98 Correct 247 ms 113784 KB Output is correct
99 Correct 247 ms 113784 KB Output is correct
100 Correct 247 ms 113784 KB Output is correct
101 Correct 245 ms 113784 KB Output is correct
102 Correct 250 ms 113912 KB Output is correct