oj.uz

Submission #121965

# Submission time Handle Problem Language Result Execution time Memory
121965 2019-06-27T09:53:25 Z KLPP Lamps (JOI19_lamps) C++14
100 / 100
 153 ms 28136 KB 
#include<bits/stdc++.h>

using namespace std;
typedef long long int lld;
typedef pair<lld,lld> pii;
#define rep(i,a,b) for(int i=a;i<b;i++)
#define trav(a,v) for(auto a:v)
int DP[2000000][2][3];
int diff[2000000];
int zeros[2000000];
int ones[2000000];
string A,B;
int valid(int i, int j, int k){
  if(k==0){
    //cout<<(A[i]==B[i])<<endl;
    return ((A[i]==B[i])+j)%2;
  }
  return ((B[i]==(k-1+'0'))+j)%2;
}

int main(){
  int n;
  cin>>n;
  cin>>A>>B;
  rep(i,0,n+1){
    rep(j,0,2){
      rep(k,0,3){
	DP[i][j][k]=10000000;
      }
    }
  }
  DP[0][0][0]=0;
  /*diff[0]=0;
  zeros[0]=0;
  ones[0]=0;
  rep(i,0,n){
    diff[i+1]=diff[i]+(A[i]==B[i]);
    zeros[i+1]=zeros[i]+(B[i]=='0');
    ones[i+1]=ones[i]+(B[i]=='1');
    //cout<<diff[i+1]<<" "<<zeros[i+1]<<" "<<ones[i+1]<<endl;
  }*/
  //cout<<valid(0,1,0)<<endl;
  rep(i,1,n+1){
    rep(j,0,2){
      rep(k,0,3){
	if(valid(i-1,j,k)){
	  rep(l,0,2){
	    rep(m,0,3){
	      
	      DP[i][j][k]=min(DP[i][j][k],DP[i-1][l][m]+((j==1)&&(l==0))+((k>0)&&(m!=k)));
	    }
	  }
	}
      }
    }
  }
  int ans=100000000;
  /*rep(i,0,n+1){
    rep(j,0,2){
      rep(k,0,3){
	cout<<DP[i][j][k]<<" ";
      }cout<<endl;
    }cout<<endl;
  }*/
  rep(j,0,2){
    rep(k,0,3)ans=min(ans,DP[n][j][k]);
  }
  cout<<ans<<endl;
  return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 2 ms 376 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 2 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 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 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 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 256 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 3 ms 384 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 2 ms 376 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 2 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 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 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 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 256 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 3 ms 384 KB Output is correct
35 Correct 3 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 380 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 384 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 384 KB Output is correct
48 Correct 2 ms 384 KB Output is correct
49 Correct 3 ms 384 KB Output is correct
50 Correct 2 ms 384 KB Output is correct
51 Correct 2 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 3 ms 512 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 122 ms 27880 KB Output is correct
8 Correct 122 ms 28008 KB Output is correct
9 Correct 125 ms 28080 KB Output is correct
10 Correct 121 ms 27872 KB Output is correct
11 Correct 121 ms 27880 KB Output is correct
12 Correct 121 ms 28000 KB Output is correct
13 Correct 122 ms 27884 KB Output is correct
14 Correct 122 ms 28068 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 2 ms 376 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 2 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 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 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 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 256 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 3 ms 384 KB Output is correct
35 Correct 3 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 380 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 384 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 384 KB Output is correct
48 Correct 2 ms 384 KB Output is correct
49 Correct 3 ms 384 KB Output is correct
50 Correct 2 ms 384 KB Output is correct
51 Correct 2 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 3 ms 512 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 122 ms 27880 KB Output is correct
66 Correct 122 ms 28008 KB Output is correct
67 Correct 125 ms 28080 KB Output is correct
68 Correct 121 ms 27872 KB Output is correct
69 Correct 121 ms 27880 KB Output is correct
70 Correct 121 ms 28000 KB Output is correct
71 Correct 122 ms 27884 KB Output is correct
72 Correct 122 ms 28068 KB Output is correct
73 Correct 126 ms 27880 KB Output is correct
74 Correct 125 ms 27876 KB Output is correct
75 Correct 126 ms 28136 KB Output is correct
76 Correct 125 ms 28012 KB Output is correct
77 Correct 124 ms 27884 KB Output is correct
78 Correct 133 ms 27928 KB Output is correct
79 Correct 126 ms 28048 KB Output is correct
80 Correct 127 ms 27940 KB Output is correct
81 Correct 130 ms 27936 KB Output is correct
82 Correct 127 ms 27988 KB Output is correct
83 Correct 131 ms 27816 KB Output is correct
84 Correct 132 ms 27876 KB Output is correct
85 Correct 131 ms 27960 KB Output is correct
86 Correct 141 ms 28092 KB Output is correct
87 Correct 130 ms 28008 KB Output is correct
88 Correct 138 ms 28004 KB Output is correct
89 Correct 136 ms 27828 KB Output is correct
90 Correct 139 ms 28004 KB Output is correct
91 Correct 136 ms 28068 KB Output is correct
92 Correct 135 ms 28012 KB Output is correct
93 Correct 134 ms 27876 KB Output is correct
94 Correct 153 ms 27880 KB Output is correct
95 Correct 139 ms 27888 KB Output is correct
96 Correct 137 ms 27852 KB Output is correct
97 Correct 135 ms 27880 KB Output is correct
98 Correct 140 ms 27896 KB Output is correct
99 Correct 135 ms 28056 KB Output is correct
100 Correct 135 ms 27880 KB Output is correct
101 Correct 134 ms 27880 KB Output is correct
102 Correct 136 ms 27988 KB Output is correct