Submission #448284

#	Time	Username	Problem	Language	Result	Execution time	Memory
448284		stefantaga	Skyline (IZhO11_skyline)	C++14	100 / 100	73 ms	50464 KiB

skyline

#include <bits/stdc++.h>

using namespace std;
const int INF = 1e9 + 5;
const int N = 305;
const int H = 205;
int dp[N][H][H]; ///dp[i][j][k] = sunt la cladirea i iar pe i mai am j iar pe i-1 mai am k
int h[N];
int main()
{
    int n, i, j, k;
    cin >> n;
    for (i = 1; i <= n; i++)
        cin >> h[i];
    memset(dp, INF, sizeof dp);
    for (i = 0; i <= h[1]; i++)
        dp[2][h[2]][i] = dp[1][i][0] = 3 * (h[1] - i);
    for (i = 2; i <= n; i++)
    {
        for (j = h[i]; 0 <= j; j--)
            for (k = h[i - 1]; 0 <= k; k--)
                dp[i][j][k] = min(dp[i][j][k], dp[i][j + 1][k] + 3);
        for (j = h[i]; 0 <= j; j--)
            for (k = h[i - 1]; 0 <= k; k--)
                dp[i][j][k] = min(dp[i][j][k], dp[i][j + 1][k + 1] + 5);
        for (int l = min(h[i + 1], min(h[i], h[i - 1])); 0 <= l; l--) ///atateam am scos din v[i - 1] ca tb sa l fac 0
            for (j = h[i]; l <= j; j--)
                dp[i + 1][h[i + 1] - l][j - l] = min(dp[i][j][l] + 7 * l, dp[i + 1][h[i + 1] - l][j - l]);
    }
    cout << dp[n][0][0];
    return 0;
}

• Subtask 1: 100 / 100