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Submission #1001364

# Submission time Handle Problem Language Result Execution time Memory
1001364 2024-06-19T01:48:06 Z biximo Lamps (JOI19_lamps) C++17
10 / 100
 37 ms 35760 KB 
#include <bits/stdc++.h>
#define N 1000005
#define INF 1000000000
using namespace std;
void chmin(int& a, int v) {
	a = min(a,v);
}
/* 
0 - none
1 - flip
2 - ons
3 - offs
4 - flip, ons
5 - flip, offs
6 - ons, flip
7 - offs, flip  
*/
int n, dp[N][8];
string A, B;
int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin >> n >> A >> B;
    for(auto&i: dp) for(auto&j: i) j = INF;
    dp[0][0] = 0;
	for(int i = 0; i < n; i ++) {

		if(A[i] == B[i]) {
			chmin(dp[i+1][0],min({dp[i][0],dp[i][1],dp[i][2],dp[i][3],dp[i][4],dp[i][5],dp[i][6],dp[i][7]}));
		} else {
			chmin(dp[i+1][1],min({dp[i][0]+1,dp[i][1],dp[i][2]+1,dp[i][3]+1,dp[i][4],dp[i][5],dp[i][6],dp[i][7]}));
		}

		if(B[i] == '1') {
			chmin(dp[i+1][2],min({dp[i][0]+1,dp[i][1]+1,dp[i][2],dp[i][3]+1,dp[i][4],dp[i][5]+1,dp[i][6],dp[i][7]+1}));
			chmin(dp[i+1][6],min({dp[i][0]+2,dp[i][1]+1,dp[i][2]+2,dp[i][3]+2,dp[i][4]+1,dp[i][5]+1,dp[i][6],dp[i][7]+1}));
			chmin(dp[i+1][5],min({dp[i][0]+2,dp[i][1]+2,dp[i][2]+2,dp[i][3]+1,dp[i][4]+2,dp[i][5],dp[i][6]+2,dp[i][7]+1}));

		} else {
			chmin(dp[i+1][3],min({dp[i][0]+1,dp[i][1]+1,dp[i][2]+1,dp[i][3],dp[i][4]+1,dp[i][5],dp[i][6]+1,dp[i][7]}));
			chmin(dp[i+1][4],min({dp[i][0]+2,dp[i][1]+2,dp[i][2]+1,dp[i][3]+2,dp[i][4],dp[i][5]+2,dp[i][6]+1,dp[i][7]+2}));
			chmin(dp[i+1][7],min({dp[i][0]+2,dp[i][1]+1,dp[i][2]+2,dp[i][3]+2,dp[i][4]+1,dp[i][5]+1,dp[i][6]+1,dp[i][7]}));
		}
	}
	int ans = INF;
	for(int i = 0; i < 8; i ++) {
		ans = min(ans, dp[n][i]);
	}
	cout << ans;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 31584 KB Output is correct
2 Correct 11 ms 31584 KB Output is correct
3 Correct 13 ms 31576 KB Output is correct
4 Correct 13 ms 31580 KB Output is correct
5 Correct 13 ms 31580 KB Output is correct
6 Correct 16 ms 31532 KB Output is correct
7 Correct 14 ms 31832 KB Output is correct
8 Correct 13 ms 31580 KB Output is correct
9 Correct 11 ms 31580 KB Output is correct
10 Correct 12 ms 31772 KB Output is correct
11 Correct 13 ms 31576 KB Output is correct
12 Correct 11 ms 31580 KB Output is correct
13 Correct 15 ms 31664 KB Output is correct
14 Correct 11 ms 31580 KB Output is correct
15 Correct 12 ms 31580 KB Output is correct
16 Correct 13 ms 31760 KB Output is correct
17 Correct 12 ms 31576 KB Output is correct
18 Correct 11 ms 31580 KB Output is correct
19 Correct 12 ms 31588 KB Output is correct
20 Correct 13 ms 31580 KB Output is correct
21 Correct 11 ms 31664 KB Output is correct
22 Correct 11 ms 31580 KB Output is correct
23 Correct 14 ms 31696 KB Output is correct
24 Correct 12 ms 31580 KB Output is correct
25 Correct 13 ms 31664 KB Output is correct
26 Correct 13 ms 31580 KB Output is correct
27 Correct 16 ms 31704 KB Output is correct
28 Correct 13 ms 31580 KB Output is correct
29 Correct 13 ms 31684 KB Output is correct
30 Correct 12 ms 31764 KB Output is correct
31 Correct 13 ms 31580 KB Output is correct
32 Correct 12 ms 31552 KB Output is correct
33 Correct 12 ms 31592 KB Output is correct
34 Correct 12 ms 31580 KB Output is correct

Subtask #2
0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 31584 KB Output is correct
2 Correct 11 ms 31584 KB Output is correct
3 Correct 13 ms 31576 KB Output is correct
4 Correct 13 ms 31580 KB Output is correct
5 Correct 13 ms 31580 KB Output is correct
6 Correct 16 ms 31532 KB Output is correct
7 Correct 14 ms 31832 KB Output is correct
8 Correct 13 ms 31580 KB Output is correct
9 Correct 11 ms 31580 KB Output is correct
10 Correct 12 ms 31772 KB Output is correct
11 Correct 13 ms 31576 KB Output is correct
12 Correct 11 ms 31580 KB Output is correct
13 Correct 15 ms 31664 KB Output is correct
14 Correct 11 ms 31580 KB Output is correct
15 Correct 12 ms 31580 KB Output is correct
16 Correct 13 ms 31760 KB Output is correct
17 Correct 12 ms 31576 KB Output is correct
18 Correct 11 ms 31580 KB Output is correct
19 Correct 12 ms 31588 KB Output is correct
20 Correct 13 ms 31580 KB Output is correct
21 Correct 11 ms 31664 KB Output is correct
22 Correct 11 ms 31580 KB Output is correct
23 Correct 14 ms 31696 KB Output is correct
24 Correct 12 ms 31580 KB Output is correct
25 Correct 13 ms 31664 KB Output is correct
26 Correct 13 ms 31580 KB Output is correct
27 Correct 16 ms 31704 KB Output is correct
28 Correct 13 ms 31580 KB Output is correct
29 Correct 13 ms 31684 KB Output is correct
30 Correct 12 ms 31764 KB Output is correct
31 Correct 13 ms 31580 KB Output is correct
32 Correct 12 ms 31552 KB Output is correct
33 Correct 12 ms 31592 KB Output is correct
34 Correct 12 ms 31580 KB Output is correct
35 Correct 13 ms 31580 KB Output is correct
36 Correct 12 ms 31572 KB Output is correct
37 Correct 12 ms 31580 KB Output is correct
38 Correct 13 ms 31580 KB Output is correct
39 Correct 13 ms 31576 KB Output is correct
40 Incorrect 13 ms 31580 KB Output isn't correct
41 Halted 0 ms 0 KB -

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 31580 KB Output is correct
2 Correct 13 ms 31580 KB Output is correct
3 Correct 12 ms 31676 KB Output is correct
4 Correct 12 ms 31580 KB Output is correct
5 Correct 12 ms 31536 KB Output is correct
6 Correct 13 ms 31576 KB Output is correct
7 Correct 35 ms 35744 KB Output is correct
8 Correct 37 ms 35708 KB Output is correct
9 Correct 32 ms 35752 KB Output is correct
10 Correct 34 ms 35756 KB Output is correct
11 Correct 32 ms 35748 KB Output is correct
12 Correct 33 ms 35760 KB Output is correct
13 Correct 34 ms 35744 KB Output is correct
14 Correct 34 ms 35748 KB Output is correct

Subtask #4
0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 31584 KB Output is correct
2 Correct 11 ms 31584 KB Output is correct
3 Correct 13 ms 31576 KB Output is correct
4 Correct 13 ms 31580 KB Output is correct
5 Correct 13 ms 31580 KB Output is correct
6 Correct 16 ms 31532 KB Output is correct
7 Correct 14 ms 31832 KB Output is correct
8 Correct 13 ms 31580 KB Output is correct
9 Correct 11 ms 31580 KB Output is correct
10 Correct 12 ms 31772 KB Output is correct
11 Correct 13 ms 31576 KB Output is correct
12 Correct 11 ms 31580 KB Output is correct
13 Correct 15 ms 31664 KB Output is correct
14 Correct 11 ms 31580 KB Output is correct
15 Correct 12 ms 31580 KB Output is correct
16 Correct 13 ms 31760 KB Output is correct
17 Correct 12 ms 31576 KB Output is correct
18 Correct 11 ms 31580 KB Output is correct
19 Correct 12 ms 31588 KB Output is correct
20 Correct 13 ms 31580 KB Output is correct
21 Correct 11 ms 31664 KB Output is correct
22 Correct 11 ms 31580 KB Output is correct
23 Correct 14 ms 31696 KB Output is correct
24 Correct 12 ms 31580 KB Output is correct
25 Correct 13 ms 31664 KB Output is correct
26 Correct 13 ms 31580 KB Output is correct
27 Correct 16 ms 31704 KB Output is correct
28 Correct 13 ms 31580 KB Output is correct
29 Correct 13 ms 31684 KB Output is correct
30 Correct 12 ms 31764 KB Output is correct
31 Correct 13 ms 31580 KB Output is correct
32 Correct 12 ms 31552 KB Output is correct
33 Correct 12 ms 31592 KB Output is correct
34 Correct 12 ms 31580 KB Output is correct
35 Correct 13 ms 31580 KB Output is correct
36 Correct 12 ms 31572 KB Output is correct
37 Correct 12 ms 31580 KB Output is correct
38 Correct 13 ms 31580 KB Output is correct
39 Correct 13 ms 31576 KB Output is correct
40 Incorrect 13 ms 31580 KB Output isn't correct
41 Halted 0 ms 0 KB -