Submission #92161

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
92161	2019-01-01 19:14:40	Kastanda	Maja (COCI18_maja)	C++11	110 / 110	111 ms	636 KiB

maja

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#include<bits/stdc++.h>
using namespace std;
const int N = 105;
int n, m, k, a, b, A[N][N];
long long MX, dp[2][N][N];
int main()
{
    scanf("%d%d%d%d%d", &n, &m, &a, &b, &k);
    for (int i = 1; i <= n; i++)
        for (int j = 1; j <= m; j++)
            scanf("%d", &A[i][j]);
    memset(dp, -63, sizeof(dp));
    dp[0][a][b] = 0;
    for (int len = 1, w = 1; len <= n * m && len * 2 <= k; len ++, w = !w)
    {
        for (int i = 1; i <= n; i++)
            for (int j = (a + b + i + (!w)) % 2 + 1; j <= m; j += 2)
            {
                dp[w][i][j] = max({dp[!w][i-1][j] + A[i-1][j], dp[!w][i+1][j] + A[i+1][j],
                                  dp[!w][i][j-1] + A[i][j-1], dp[!w][i][j+1] + A[i][j+1]});
                int sum = A[i][j] + max({A[i-1][j], A[i+1][j], A[i][j-1], A[i][j+1]});
                MX = max(MX, dp[w][i][j] * 2LL + ((k >> 1) - len) * 1LL * sum + A[i][j]);
            }
    }
    return !printf("%lld\n", MX);
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

maja.cpp: In function 'int main()':
maja.cpp:8:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d%d%d", &n, &m, &a, &b, &k);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
maja.cpp:11:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d", &A[i][j]);
             ~~~~~^~~~~~~~~~~~~~~~

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