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Submission #109586

# Submission time Handle Problem Language Result Execution time Memory
109586 2019-05-07T06:45:57 Z Arturgo Lamps (JOI19_lamps) C++14
47 / 100
 1000 ms 63748 KB 
#include <iostream>
#include <bitset>
using namespace std;

int nbCars;
string deb, fin;

int dyn[1000001][16];

inline bool execute(bool init, bitset<4> bits) {
  if(bits[0])
    init = 0;
  if(bits[1])
    init = 1;
  if(bits[2])
    init = 0;
  if(bits[3])
    init = !init;
  return init;
}

int main() {
  ios_base::sync_with_stdio(false);
  cin >> nbCars;
  cin >> deb >> fin;

  for(int sol = 0;sol < 16;sol++) {
    dyn[nbCars][sol] = bitset<4>(sol).count();
  }
  for(int pos = nbCars - 1;pos >= 0;pos--) {
    for(int iBits = 0;iBits < 16;iBits++) {
      bitset<4> bits(iBits);
      
      int mini = 1000 * 1000;
      for(int sol = 0;sol < 16;sol++) {
	bitset<4> nouv(sol);
	if(execute(deb[pos] - '0', nouv) == fin[pos] - '0') {
	  mini = min(dyn[pos + 1][sol] + (int)(nouv ^ bits).count(), mini);
	}
      }

      dyn[pos][iBits] = mini;
    }
  }

  cout << dyn[0][0] / 2 << endl;
  return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 3 ms 384 KB Output is correct
15 Correct 2 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 2 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 0 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 3 ms 384 KB Output is correct
24 Correct 3 ms 384 KB Output is correct
25 Correct 3 ms 384 KB Output is correct
26 Correct 3 ms 384 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 3 ms 432 KB Output is correct
29 Correct 3 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 3 ms 384 KB Output is correct
33 Correct 2 ms 384 KB Output is correct
34 Correct 3 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 3 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 3 ms 384 KB Output is correct
15 Correct 2 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 2 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 0 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 3 ms 384 KB Output is correct
24 Correct 3 ms 384 KB Output is correct
25 Correct 3 ms 384 KB Output is correct
26 Correct 3 ms 384 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 3 ms 432 KB Output is correct
29 Correct 3 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 3 ms 384 KB Output is correct
33 Correct 2 ms 384 KB Output is correct
34 Correct 3 ms 384 KB Output is correct
35 Correct 6 ms 512 KB Output is correct
36 Correct 5 ms 512 KB Output is correct
37 Correct 5 ms 512 KB Output is correct
38 Correct 4 ms 512 KB Output is correct
39 Correct 5 ms 512 KB Output is correct
40 Correct 6 ms 512 KB Output is correct
41 Correct 4 ms 512 KB Output is correct
42 Correct 4 ms 512 KB Output is correct
43 Correct 4 ms 512 KB Output is correct
44 Correct 5 ms 512 KB Output is correct
45 Correct 4 ms 512 KB Output is correct
46 Correct 5 ms 512 KB Output is correct
47 Correct 4 ms 512 KB Output is correct
48 Correct 5 ms 512 KB Output is correct
49 Correct 4 ms 512 KB Output is correct
50 Correct 6 ms 512 KB Output is correct
51 Correct 5 ms 512 KB Output is correct
52 Correct 5 ms 512 KB Output is correct
53 Correct 5 ms 512 KB Output is correct
54 Correct 5 ms 512 KB Output is correct
55 Correct 4 ms 512 KB Output is correct
56 Correct 6 ms 512 KB Output is correct
57 Correct 4 ms 512 KB Output is correct
58 Correct 4 ms 512 KB Output is correct

Subtask #3
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 3 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 512 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Execution timed out 1065 ms 63748 KB Time limit exceeded
8 Halted 0 ms 0 KB -

Subtask #4
0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 3 ms 384 KB Output is correct
15 Correct 2 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 2 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 0 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 3 ms 384 KB Output is correct
24 Correct 3 ms 384 KB Output is correct
25 Correct 3 ms 384 KB Output is correct
26 Correct 3 ms 384 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 3 ms 432 KB Output is correct
29 Correct 3 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 3 ms 384 KB Output is correct
33 Correct 2 ms 384 KB Output is correct
34 Correct 3 ms 384 KB Output is correct
35 Correct 6 ms 512 KB Output is correct
36 Correct 5 ms 512 KB Output is correct
37 Correct 5 ms 512 KB Output is correct
38 Correct 4 ms 512 KB Output is correct
39 Correct 5 ms 512 KB Output is correct
40 Correct 6 ms 512 KB Output is correct
41 Correct 4 ms 512 KB Output is correct
42 Correct 4 ms 512 KB Output is correct
43 Correct 4 ms 512 KB Output is correct
44 Correct 5 ms 512 KB Output is correct
45 Correct 4 ms 512 KB Output is correct
46 Correct 5 ms 512 KB Output is correct
47 Correct 4 ms 512 KB Output is correct
48 Correct 5 ms 512 KB Output is correct
49 Correct 4 ms 512 KB Output is correct
50 Correct 6 ms 512 KB Output is correct
51 Correct 5 ms 512 KB Output is correct
52 Correct 5 ms 512 KB Output is correct
53 Correct 5 ms 512 KB Output is correct
54 Correct 5 ms 512 KB Output is correct
55 Correct 4 ms 512 KB Output is correct
56 Correct 6 ms 512 KB Output is correct
57 Correct 4 ms 512 KB Output is correct
58 Correct 4 ms 512 KB Output is correct
59 Correct 2 ms 384 KB Output is correct
60 Correct 3 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 512 KB Output is correct
64 Correct 2 ms 384 KB Output is correct
65 Execution timed out 1065 ms 63748 KB Time limit exceeded
66 Halted 0 ms 0 KB -