oj.uz

Submission #118714

# Submission time Handle Problem Language Result Execution time Memory
118714 2019-06-19T13:52:21 Z sofhiasouza Maja (COCI18_maja) C++14
99 / 110
 963 ms 888 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;

const int maxn = 110, maxs = 1e4+10;

int n, m, a, b, mat[maxn][maxn], k;

struct pt
{
	ll f;
	int sf;

	bool operator > (const pt &k) const{
		if(f != k.f) return f > k.f;
		return sf > k.sf;
	}

}dp[maxn][maxn][2];

pt solve()
{
	int mod = 0;
	for(int t = 1 ; t <= min(k, 10000) ; t++)
	{	
		mod ^= 1;
		for(int i = 1 ; i <= n ; i++)
		{
			for(int j = 1 ; j <= m ; j++)
			{
				if(dp[i-1][j][mod^1] > dp[i+1][j][mod^1] and dp[i-1][j][mod^1] > dp[i][j-1][mod^1] and dp[i-1][j][mod^1] > dp[i][j+1][mod^1])
				{
					dp[i][j][mod] = dp[i-1][j][mod^1];
					if(mat[i][j]+mat[i-1][j] > dp[i-1][j][mod^1].sf) dp[i][j][mod].sf = mat[i][j]+mat[i-1][j];
				}
				else if(dp[i+1][j][mod^1] > dp[i-1][j][mod^1] and dp[i+1][j][mod^1] > dp[i][j-1][mod^1] and dp[i+1][j][mod^1] > dp[i][j+1][mod^1])
				{
					dp[i][j][mod] = dp[i+1][j][mod^1];
					if(mat[i][j]+mat[i+1][j] > dp[i+1][j][mod^1].sf) dp[i][j][mod].sf = mat[i][j]+mat[i+1][j];
				}
				else if(dp[i][j-1][mod^1] > dp[i-1][j][mod^1] and dp[i][j-1][mod^1] > dp[i+1][j][mod^1] and dp[i][j-1][mod^1] > dp[i][j+1][mod^1])
				{
					dp[i][j][mod] = dp[i][j-1][mod^1];
					if(mat[i][j]+mat[i][j-1] > dp[i][j-1][mod^1].sf) dp[i][j][mod].sf = mat[i][j]+mat[i][j-1];
				}
				else
				{
					dp[i][j][mod] = dp[i][j+1][mod^1];
					if(mat[i][j]+mat[i][j+1] > dp[i][j+1][mod^1].sf) dp[i][j][mod].sf = mat[i][j]+mat[i][j+1];
				}

				if(dp[i][j][mod].f != -1) dp[i][j][mod].f += mat[i][j];
			}
		}
	}
	return dp[a][b][mod];
}

int main()
{
	cin >> n >> m >> a >> b >> k;

	for(int i = 1 ; i <= n ; i++)
	{
		for(int j = 1 ; j <= m ; j++)
		{
			cin >> mat[i][j];
		}
	}

	memset(dp, -1, sizeof dp);
	dp[a][b][0].f = 0;

	pt resp = solve();
	
	if(k < 10000) cout << resp.f << endl;
	else cout << (ll)resp.f + (ll)(resp.sf)*((ll)k-10000)/2 << endl;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 640 KB Output is correct
2 Correct 2 ms 640 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 640 KB Output is correct
2 Correct 10 ms 640 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 768 KB Output is correct
2 Correct 17 ms 748 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 768 KB Output is correct
2 Correct 5 ms 640 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 334 ms 760 KB Output is correct
2 Correct 21 ms 640 KB Output is correct
3 Correct 963 ms 828 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 776 KB Output is correct
2 Correct 530 ms 832 KB Output is correct
3 Correct 633 ms 888 KB Output is correct

Subtask #7
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 649 ms 888 KB Output is correct
2 Correct 780 ms 884 KB Output is correct

Subtask #8
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 260 ms 760 KB Output is correct
2 Correct 227 ms 788 KB Output is correct

Subtask #9
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 96 ms 752 KB Output is correct
2 Correct 29 ms 888 KB Output is correct

Subtask #10
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 134 ms 776 KB Output is correct
2 Incorrect 23 ms 768 KB Output isn't correct