답안 #104607

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
104607	2019-04-08T10:43:31 Z	antimirage	Lamps (JOI19_lamps)	C++14	0 / 100	1000 ms	21848 KB

lamp

# include <bits/stdc++.h>

using namespace std;

const int N = 1e6 + 5;

int n, dp[N][2], pref[N][2], fl[N];

string a, b;

inline int calc (int l, int r, int type){

      if (type == 0)
            return pref[r][0] - pref[l - 1][0] + (b[l - 1] == b[l] && b[l] == '0');

      return pref[r][1] - pref[l - 1][1] + (b[l - 1] == b[l] && b[l] == '1');
}
main(){

      memset( dp, 0x3f3f3f3f, sizeof(dp) );

      cin >> n >> a >> b;

      a = ' ' + a;
      b = ' ' + b;

      for (int i = 1; i <= n; i++){

            if (a[i] != a[i - 1])
                  fl[i]++;

            fl[i] += fl[i - 1];

            if (b[i] != b[i - 1])
                  pref[i][ b[i] - 48 ] = 1;

            pref[i][0] += pref[i - 1][0];
            pref[i][1] += pref[i - 1][1];
      }
      dp[0][0] = 0;

      for (int i = 1; i <= n; i++){

            if (a[i] == b[i])
                  dp[i][0] = min( dp[i - 1][1], dp[i - 1][0] );

            if (a[i] != b[i])
                  dp[i][1] = min( dp[i - 1][1], dp[i - 1][0] + 1);

            for (int j = i; j >= 1; j--){
                  dp[i][0] = min( dp[i][0], dp[j - 1][0] + calc( j, i, 1 ) + 1 - ( fl[i] == fl[j] && a[i] == '0') );
                  dp[i][0] = min( dp[i][0], dp[j - 1][0] + calc( j, i, 0 ) + 1 - ( fl[i] == fl[j] && a[i] == '1') );

                  dp[i][0] = min( dp[i][0], dp[j - 1][1] + calc( j, i, 1 ) + 1 - ( fl[i] == fl[j] && a[i] == '1') );
                  dp[i][0] = min( dp[i][0], dp[j - 1][1] + calc( j, i, 0 ) + 1 - ( fl[i] == fl[j] && a[i] == '0') );

                  dp[i][1] = min( dp[i][1], dp[j - 1][1] + calc( j, i, 0 ) + 1 - ( fl[i] == fl[j] && a[i] == '0') );
                  dp[i][1] = min( dp[i][1], dp[j - 1][1] + calc( j, i, 1 ) + 1 - ( fl[i] == fl[j] && a[i] == '1') );

                  dp[i][1] = min( dp[i][1], dp[j - 1][0] + calc( j, i, 0 ) + 2 - ( fl[i] == fl[j] && a[i] == '1') );
                  dp[i][1] = min( dp[i][1], dp[j - 1][0] + calc( j, i, 1 ) + 2 - ( fl[i] == fl[j] && a[i] == '0') );
            }
      }
      cout << min(dp[n][1], dp[n][0]) << endl;
}

Compilation message

lamp.cpp:18:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^

Subtask #1
0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	8 ms	8192 KB	Output is correct
2	Correct	10 ms	8192 KB	Output is correct
3	Correct	7 ms	8192 KB	Output is correct
4	Correct	9 ms	8228 KB	Output is correct
5	Correct	9 ms	8192 KB	Output is correct
6	Correct	10 ms	8320 KB	Output is correct
7	Correct	9 ms	8140 KB	Output is correct
8	Correct	8 ms	8192 KB	Output is correct
9	Correct	9 ms	8192 KB	Output is correct
10	Correct	10 ms	8136 KB	Output is correct
11	Correct	9 ms	8192 KB	Output is correct
12	Correct	10 ms	8192 KB	Output is correct
13	Correct	10 ms	8192 KB	Output is correct
14	Correct	10 ms	8192 KB	Output is correct
15	Correct	11 ms	8320 KB	Output is correct
16	Correct	9 ms	8320 KB	Output is correct
17	Correct	9 ms	8192 KB	Output is correct
18	Correct	8 ms	8192 KB	Output is correct
19	Correct	9 ms	8192 KB	Output is correct
20	Correct	9 ms	8192 KB	Output is correct
21	Correct	9 ms	8192 KB	Output is correct
22	Correct	10 ms	8192 KB	Output is correct
23	Correct	10 ms	8212 KB	Output is correct
24	Correct	10 ms	8192 KB	Output is correct
25	Correct	11 ms	8192 KB	Output is correct
26	Incorrect	9 ms	8192 KB	Output isn't correct
27	Halted	0 ms	0 KB	-

Subtask #2
0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	8 ms	8192 KB	Output is correct
2	Correct	10 ms	8192 KB	Output is correct
3	Correct	7 ms	8192 KB	Output is correct
4	Correct	9 ms	8228 KB	Output is correct
5	Correct	9 ms	8192 KB	Output is correct
6	Correct	10 ms	8320 KB	Output is correct
7	Correct	9 ms	8140 KB	Output is correct
8	Correct	8 ms	8192 KB	Output is correct
9	Correct	9 ms	8192 KB	Output is correct
10	Correct	10 ms	8136 KB	Output is correct
11	Correct	9 ms	8192 KB	Output is correct
12	Correct	10 ms	8192 KB	Output is correct
13	Correct	10 ms	8192 KB	Output is correct
14	Correct	10 ms	8192 KB	Output is correct
15	Correct	11 ms	8320 KB	Output is correct
16	Correct	9 ms	8320 KB	Output is correct
17	Correct	9 ms	8192 KB	Output is correct
18	Correct	8 ms	8192 KB	Output is correct
19	Correct	9 ms	8192 KB	Output is correct
20	Correct	9 ms	8192 KB	Output is correct
21	Correct	9 ms	8192 KB	Output is correct
22	Correct	10 ms	8192 KB	Output is correct
23	Correct	10 ms	8212 KB	Output is correct
24	Correct	10 ms	8192 KB	Output is correct
25	Correct	11 ms	8192 KB	Output is correct
26	Incorrect	9 ms	8192 KB	Output isn't correct
27	Halted	0 ms	0 KB	-

Subtask #3
0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	8192 KB	Output is correct
2	Correct	10 ms	8192 KB	Output is correct
3	Correct	10 ms	8164 KB	Output is correct
4	Correct	9 ms	8192 KB	Output is correct
5	Correct	9 ms	8064 KB	Output is correct
6	Correct	10 ms	8192 KB	Output is correct
7	Execution timed out	1062 ms	21848 KB	Time limit exceeded
8	Halted	0 ms	0 KB	-

Subtask #4
0 / 49.0

#	결과	실행 시간	메모리	Grader output
1	Correct	8 ms	8192 KB	Output is correct
2	Correct	10 ms	8192 KB	Output is correct
3	Correct	7 ms	8192 KB	Output is correct
4	Correct	9 ms	8228 KB	Output is correct
5	Correct	9 ms	8192 KB	Output is correct
6	Correct	10 ms	8320 KB	Output is correct
7	Correct	9 ms	8140 KB	Output is correct
8	Correct	8 ms	8192 KB	Output is correct
9	Correct	9 ms	8192 KB	Output is correct
10	Correct	10 ms	8136 KB	Output is correct
11	Correct	9 ms	8192 KB	Output is correct
12	Correct	10 ms	8192 KB	Output is correct
13	Correct	10 ms	8192 KB	Output is correct
14	Correct	10 ms	8192 KB	Output is correct
15	Correct	11 ms	8320 KB	Output is correct
16	Correct	9 ms	8320 KB	Output is correct
17	Correct	9 ms	8192 KB	Output is correct
18	Correct	8 ms	8192 KB	Output is correct
19	Correct	9 ms	8192 KB	Output is correct
20	Correct	9 ms	8192 KB	Output is correct
21	Correct	9 ms	8192 KB	Output is correct
22	Correct	10 ms	8192 KB	Output is correct
23	Correct	10 ms	8212 KB	Output is correct
24	Correct	10 ms	8192 KB	Output is correct
25	Correct	11 ms	8192 KB	Output is correct
26	Incorrect	9 ms	8192 KB	Output isn't correct
27	Halted	0 ms	0 KB	-

답안 #104607

Compilation message

Subtask #1 0 / 6.0

Subtask #2 0 / 41.0

Subtask #3 0 / 4.0

Subtask #4 0 / 49.0

Subtask #1
0 / 6.0

Subtask #2
0 / 41.0

Subtask #3
0 / 4.0

Subtask #4
0 / 49.0