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Submission #332487

# Submission time Handle Problem Language Result Execution time Memory
332487 2020-12-02T17:34:16 Z CaroLinda Lamps (JOI19_lamps) C++14
100 / 100
 71 ms 66924 KB 
#include <bits/stdc++.h>

const int MAX = 1e6+10 ;

using namespace std ;

char A[MAX], B[MAX] ;
int dp[MAX][4][4] ;

int main()
{
	int n ;
	scanf("%d", &n ) ;

	//0 = seta tudo pra 0
	//1 = seta tudo pra 1
	//2 = switch
	//3 = nao tem nada rolando

	scanf("%s", A ) ;
	scanf("%s", B ) ;

	for(int i = n-1 ; i >= 0 ; i-- )
		for(int j = 2 ; j >= 0 ; j-- )
			for(int g = 0 ; g < 2 ; g++ )
			{

				int val1 = A[i] - '0' ;
				int val2 = B[i] - '0' ;
				int &ptr = dp[i][j][g] ;
				ptr = n+1 ;

				//fecho o intervalo
				if( j < 2 ) ptr = min(ptr, dp[i][2][g] ) ;

				if(j == 0 )
					ptr = min(ptr, dp[i+1][j][ val2 != 0 ] + ( (val2!=0)&(!g) ) ) ;

				if(j == 1 )
					ptr = min(ptr, dp[i+1][j][val2!=1] + ( (val2!=1)&(!g) ) ) ;	

				if(j == 2 )
				{
					//nao faco nada
					ptr = dp[i+1][2][ val1 != val2 ] + ( (val1 != val2 )&(!g) ) ;

					//faco 0
					ptr = min(ptr, dp[i+1][0][ val2 != 0] + ( (val2 != 0 )&(!g) ) + 1 ) ;

					//faco 1
					ptr = min(ptr, dp[i+1][1][val2!=1] + ((val2!=1)&(!g) ) + 1 ) ;

				}

			}

	printf("%d\n", dp[0][2][0] ) ;
		
}

Compilation message

lamp.cpp: In function 'int main()':
lamp.cpp:13:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   13 |  scanf("%d", &n ) ;
      |  ~~~~~^~~~~~~~~~~
lamp.cpp:20:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   20 |  scanf("%s", A ) ;
      |  ~~~~~^~~~~~~~~~
lamp.cpp:21:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   21 |  scanf("%s", B ) ;
      |  ~~~~~^~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 492 KB Output is correct
36 Correct 1 ms 492 KB Output is correct
37 Correct 1 ms 492 KB Output is correct
38 Correct 1 ms 492 KB Output is correct
39 Correct 1 ms 492 KB Output is correct
40 Correct 1 ms 620 KB Output is correct
41 Correct 1 ms 492 KB Output is correct
42 Correct 1 ms 640 KB Output is correct
43 Correct 1 ms 492 KB Output is correct
44 Correct 1 ms 492 KB Output is correct
45 Correct 1 ms 512 KB Output is correct
46 Correct 1 ms 492 KB Output is correct
47 Correct 1 ms 492 KB Output is correct
48 Correct 1 ms 492 KB Output is correct
49 Correct 1 ms 492 KB Output is correct
50 Correct 1 ms 492 KB Output is correct
51 Correct 1 ms 492 KB Output is correct
52 Correct 1 ms 492 KB Output is correct
53 Correct 1 ms 492 KB Output is correct
54 Correct 1 ms 492 KB Output is correct
55 Correct 1 ms 492 KB Output is correct
56 Correct 1 ms 492 KB Output is correct
57 Correct 1 ms 492 KB Output is correct
58 Correct 1 ms 492 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 61 ms 66924 KB Output is correct
8 Correct 61 ms 66820 KB Output is correct
9 Correct 61 ms 66796 KB Output is correct
10 Correct 62 ms 66924 KB Output is correct
11 Correct 61 ms 66796 KB Output is correct
12 Correct 63 ms 66796 KB Output is correct
13 Correct 61 ms 66796 KB Output is correct
14 Correct 61 ms 66796 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 492 KB Output is correct
36 Correct 1 ms 492 KB Output is correct
37 Correct 1 ms 492 KB Output is correct
38 Correct 1 ms 492 KB Output is correct
39 Correct 1 ms 492 KB Output is correct
40 Correct 1 ms 620 KB Output is correct
41 Correct 1 ms 492 KB Output is correct
42 Correct 1 ms 640 KB Output is correct
43 Correct 1 ms 492 KB Output is correct
44 Correct 1 ms 492 KB Output is correct
45 Correct 1 ms 512 KB Output is correct
46 Correct 1 ms 492 KB Output is correct
47 Correct 1 ms 492 KB Output is correct
48 Correct 1 ms 492 KB Output is correct
49 Correct 1 ms 492 KB Output is correct
50 Correct 1 ms 492 KB Output is correct
51 Correct 1 ms 492 KB Output is correct
52 Correct 1 ms 492 KB Output is correct
53 Correct 1 ms 492 KB Output is correct
54 Correct 1 ms 492 KB Output is correct
55 Correct 1 ms 492 KB Output is correct
56 Correct 1 ms 492 KB Output is correct
57 Correct 1 ms 492 KB Output is correct
58 Correct 1 ms 492 KB Output is correct
59 Correct 1 ms 364 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 1 ms 364 KB Output is correct
62 Correct 1 ms 364 KB Output is correct
63 Correct 1 ms 364 KB Output is correct
64 Correct 1 ms 364 KB Output is correct
65 Correct 61 ms 66924 KB Output is correct
66 Correct 61 ms 66820 KB Output is correct
67 Correct 61 ms 66796 KB Output is correct
68 Correct 62 ms 66924 KB Output is correct
69 Correct 61 ms 66796 KB Output is correct
70 Correct 63 ms 66796 KB Output is correct
71 Correct 61 ms 66796 KB Output is correct
72 Correct 61 ms 66796 KB Output is correct
73 Correct 61 ms 66796 KB Output is correct
74 Correct 61 ms 66796 KB Output is correct
75 Correct 64 ms 66796 KB Output is correct
76 Correct 62 ms 66828 KB Output is correct
77 Correct 65 ms 66796 KB Output is correct
78 Correct 63 ms 66796 KB Output is correct
79 Correct 71 ms 66796 KB Output is correct
80 Correct 61 ms 66796 KB Output is correct
81 Correct 61 ms 66796 KB Output is correct
82 Correct 61 ms 66796 KB Output is correct
83 Correct 63 ms 66796 KB Output is correct
84 Correct 60 ms 66884 KB Output is correct
85 Correct 63 ms 66796 KB Output is correct
86 Correct 62 ms 66796 KB Output is correct
87 Correct 61 ms 66796 KB Output is correct
88 Correct 64 ms 66796 KB Output is correct
89 Correct 63 ms 66796 KB Output is correct
90 Correct 63 ms 66896 KB Output is correct
91 Correct 61 ms 66796 KB Output is correct
92 Correct 70 ms 66796 KB Output is correct
93 Correct 61 ms 66796 KB Output is correct
94 Correct 61 ms 66796 KB Output is correct
95 Correct 61 ms 66796 KB Output is correct
96 Correct 60 ms 66796 KB Output is correct
97 Correct 60 ms 66796 KB Output is correct
98 Correct 60 ms 66796 KB Output is correct
99 Correct 60 ms 66796 KB Output is correct
100 Correct 60 ms 66796 KB Output is correct
101 Correct 63 ms 66796 KB Output is correct
102 Correct 62 ms 66924 KB Output is correct