Submission #1097622

# Submission time Handle Problem Language Result Execution time Memory
1097622 2024-10-07T16:56:36 Z ten_xd Lamps (JOI19_lamps) C++17
0 / 100
1000 ms 2804 KB
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
#define rep(a,b) for(int a = 0; a < (b); ++a)
#define all(t) t.begin(), t.end()
#define pb push_back

const int N = 1e6+54321, INF = 2e9+54321;
const ll INF_L = (ll)2e18+54321;

int n,wyn;
string A,B;
int dp[N];

void solve()
{
	cin >> n >> A >> B;

	wyn = 0;

	if(A[0] == B[0]) dp[0] = 0;
	else dp[0] = 1;

	for(int i = 1; i < n; ++i)
	{
		if(A[i] == B[i]) dp[i] = dp[i-1];
		else dp[i] = dp[i-1] + 1;

		if(A[i] != B[i])
		{
			int idx = i;
			while(idx-1 >= 0 and A[idx-1] != B[idx-1]) --idx;
			if(idx == 0) dp[i] = min(dp[i],1);
			else dp[i] = min(dp[i],dp[idx-1]+1);
		}

		int zer = 0, jed = 0;
		if(B[i] == '0') zer = 1;
		else jed = 1;

		for(int j = i; j >= 0; --j)
		{
			if(j != i and B[j] != B[j+1])
			{
				if(B[j] == '0') ++zer;
				else ++jed;
			}
			int po = 0;
			if(j-1 >= 0) po = dp[j-1];
			dp[i] = min(dp[i],po+min(zer,jed)+1);
		}
	}

	cout << dp[n-1] << '\n';
}

int main()
{	
	ios_base::sync_with_stdio(0);
	cin.tie(0);

	int T = 1;
	//cin >> T;
	while(T--) solve();

	return 0;
}
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Incorrect 0 ms 348 KB Output isn't correct
14 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Incorrect 0 ms 348 KB Output isn't correct
14 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Execution timed out 1030 ms 2804 KB Time limit exceeded
8 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Incorrect 0 ms 348 KB Output isn't correct
14 Halted 0 ms 0 KB -