oj.uz

Submission #159930

# Submission time Handle Problem Language Result Execution time Memory
159930 2019-10-25T12:51:20 Z georgerapeanu Lamps (JOI19_lamps) C++11
100 / 100
 510 ms 27976 KB 
#include <iostream>
#include <algorithm>

using namespace std;

const int NMAX = 1e6;
const int inf = 1e9;

int n;
string s;
string t;
int dp[NMAX + 5][3][2];

void trans(int i,int j,int k,int ii,int jj,int kk){
    if(i != ii - 1){
        return ;
    }

    if(jj == 0){
        if(s[ii] - '0' != ((t[ii] - '0') ^ kk)){
            return ;
        }
 //       if(ii == 1 && jj == 0 && kk == 1)printf("1 %d %d %d val %d actual %d\n",i,j,k,dp[i][j][k],dp[i][j][k] + (k == 0 && kk == 1));
        dp[ii][jj][kk] = min(dp[ii][jj][kk],dp[i][j][k] + (k == 0 && kk == 1));
        return ;
    }

    if(t[ii] - '0' != ((jj - 1) ^ kk)){
        return ;
    }

//    if(ii == 1 && jj == 0 && kk == 1)printf("2 %d %d %d val %d actual %d\n",i,j,k,dp[i][j][k],dp[i][j][k] + (k == 0 && kk == 1) + (j != jj));
    dp[ii][jj][kk] = min(dp[ii][jj][kk],dp[i][j][k] + (k == 0 && kk == 1) + (j != jj));
}

int main(){

    cin >> n;
    cin >> s;
    cin >> t;

    s = " " + s;
    t = " " + t;

    dp[0][0][1] = inf;
    dp[0][1][0] = inf;
    dp[0][1][1] = inf;
    dp[0][2][0] = inf;
    dp[0][2][1] = inf;

    for(int i = 1;i <= n;i++){
        for(int j = 0;j < 3;j++){
            for(int k = 0;k < 2;k++){
                dp[i][j][k] = inf;
                for(int jj = 0;jj < 3;jj++){
                    for(int kk = 0;kk < 2;kk++){
                        trans(i - 1,jj,kk,i,j,k);
                    }
                }
            }
        }
    }

    int ans = inf;

    for(int i = 0;i < 3;i++){
        for(int j = 0;j < 2;j++){
            ans = min(ans,dp[n][i][j]);
        }
    }
    
    printf("%d\n",ans);

    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 276 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 256 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 256 KB Output is correct
22 Correct 2 ms 360 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 256 KB Output is correct
26 Correct 2 ms 256 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 256 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 2 ms 256 KB Output is correct
32 Correct 2 ms 256 KB Output is correct
33 Correct 2 ms 360 KB Output is correct
34 Correct 2 ms 292 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 276 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 256 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 256 KB Output is correct
22 Correct 2 ms 360 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 256 KB Output is correct
26 Correct 2 ms 256 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 256 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 2 ms 256 KB Output is correct
32 Correct 2 ms 256 KB Output is correct
33 Correct 2 ms 360 KB Output is correct
34 Correct 2 ms 292 KB Output is correct
35 Correct 3 ms 376 KB Output is correct
36 Correct 3 ms 376 KB Output is correct
37 Correct 3 ms 376 KB Output is correct
38 Correct 3 ms 376 KB Output is correct
39 Correct 3 ms 380 KB Output is correct
40 Correct 3 ms 376 KB Output is correct
41 Correct 3 ms 376 KB Output is correct
42 Correct 3 ms 376 KB Output is correct
43 Correct 2 ms 376 KB Output is correct
44 Correct 3 ms 376 KB Output is correct
45 Correct 3 ms 372 KB Output is correct
46 Correct 3 ms 376 KB Output is correct
47 Correct 3 ms 380 KB Output is correct
48 Correct 3 ms 376 KB Output is correct
49 Correct 3 ms 376 KB Output is correct
50 Correct 3 ms 376 KB Output is correct
51 Correct 3 ms 376 KB Output is correct
52 Correct 3 ms 376 KB Output is correct
53 Correct 3 ms 376 KB Output is correct
54 Correct 3 ms 376 KB Output is correct
55 Correct 3 ms 376 KB Output is correct
56 Correct 3 ms 376 KB Output is correct
57 Correct 3 ms 376 KB Output is correct
58 Correct 3 ms 376 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 309 ms 27832 KB Output is correct
8 Correct 309 ms 27844 KB Output is correct
9 Correct 322 ms 27840 KB Output is correct
10 Correct 307 ms 27828 KB Output is correct
11 Correct 313 ms 27744 KB Output is correct
12 Correct 310 ms 27732 KB Output is correct
13 Correct 309 ms 27688 KB Output is correct
14 Correct 309 ms 27832 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 276 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 256 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 256 KB Output is correct
22 Correct 2 ms 360 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 256 KB Output is correct
26 Correct 2 ms 256 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 256 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 2 ms 256 KB Output is correct
32 Correct 2 ms 256 KB Output is correct
33 Correct 2 ms 360 KB Output is correct
34 Correct 2 ms 292 KB Output is correct
35 Correct 3 ms 376 KB Output is correct
36 Correct 3 ms 376 KB Output is correct
37 Correct 3 ms 376 KB Output is correct
38 Correct 3 ms 376 KB Output is correct
39 Correct 3 ms 380 KB Output is correct
40 Correct 3 ms 376 KB Output is correct
41 Correct 3 ms 376 KB Output is correct
42 Correct 3 ms 376 KB Output is correct
43 Correct 2 ms 376 KB Output is correct
44 Correct 3 ms 376 KB Output is correct
45 Correct 3 ms 372 KB Output is correct
46 Correct 3 ms 376 KB Output is correct
47 Correct 3 ms 380 KB Output is correct
48 Correct 3 ms 376 KB Output is correct
49 Correct 3 ms 376 KB Output is correct
50 Correct 3 ms 376 KB Output is correct
51 Correct 3 ms 376 KB Output is correct
52 Correct 3 ms 376 KB Output is correct
53 Correct 3 ms 376 KB Output is correct
54 Correct 3 ms 376 KB Output is correct
55 Correct 3 ms 376 KB Output is correct
56 Correct 3 ms 376 KB Output is correct
57 Correct 3 ms 376 KB Output is correct
58 Correct 3 ms 376 KB Output is correct
59 Correct 2 ms 256 KB Output is correct
60 Correct 2 ms 256 KB Output is correct
61 Correct 2 ms 256 KB Output is correct
62 Correct 2 ms 256 KB Output is correct
63 Correct 2 ms 376 KB Output is correct
64 Correct 2 ms 376 KB Output is correct
65 Correct 309 ms 27832 KB Output is correct
66 Correct 309 ms 27844 KB Output is correct
67 Correct 322 ms 27840 KB Output is correct
68 Correct 307 ms 27828 KB Output is correct
69 Correct 313 ms 27744 KB Output is correct
70 Correct 310 ms 27732 KB Output is correct
71 Correct 309 ms 27688 KB Output is correct
72 Correct 309 ms 27832 KB Output is correct
73 Correct 319 ms 27804 KB Output is correct
74 Correct 330 ms 27700 KB Output is correct
75 Correct 311 ms 27856 KB Output is correct
76 Correct 316 ms 27780 KB Output is correct
77 Correct 325 ms 27828 KB Output is correct
78 Correct 311 ms 27800 KB Output is correct
79 Correct 307 ms 27740 KB Output is correct
80 Correct 311 ms 27836 KB Output is correct
81 Correct 395 ms 27976 KB Output is correct
82 Correct 316 ms 27836 KB Output is correct
83 Correct 318 ms 27800 KB Output is correct
84 Correct 483 ms 27956 KB Output is correct
85 Correct 320 ms 27700 KB Output is correct
86 Correct 321 ms 27860 KB Output is correct
87 Correct 491 ms 27820 KB Output is correct
88 Correct 320 ms 27828 KB Output is correct
89 Correct 325 ms 27876 KB Output is correct
90 Correct 320 ms 27828 KB Output is correct
91 Correct 333 ms 27736 KB Output is correct
92 Correct 332 ms 27700 KB Output is correct
93 Correct 329 ms 27700 KB Output is correct
94 Correct 339 ms 27708 KB Output is correct
95 Correct 330 ms 27704 KB Output is correct
96 Correct 328 ms 27780 KB Output is correct
97 Correct 329 ms 27836 KB Output is correct
98 Correct 327 ms 27704 KB Output is correct
99 Correct 328 ms 27704 KB Output is correct
100 Correct 510 ms 27848 KB Output is correct
101 Correct 327 ms 27908 KB Output is correct
102 Correct 328 ms 27760 KB Output is correct