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Submission #199577

# Submission time Handle Problem Language Result Execution time Memory
199577 2020-02-02T05:08:36 Z SamAnd Holding (COCI20_holding) C++17
110 / 110
 102 ms 106360 KB 
#include <bits/stdc++.h>
using namespace std;
const int N = 102;
const int INF = 1000000009;

int n, l, r, kk;
int a[N];

int dp[N][N][N * N / 4];

int main()
{
    scanf("%d%d%d%d", &n, &l, &r, &kk);
    for (int i = 1; i <= n; ++i)
        scanf("%d", &a[i]);
    kk = min(kk, (N * N / 4) - 1);
    int s = 0;
    for (int i = l; i <= r; ++i)
        s += a[i];
    for (int i = 0; i < N; ++i)
        for (int j = 0; j < N; ++j)
            for (int k = 0; k < N * N / 4; ++k)
                dp[i][j][k] = INF;
    dp[0][l - 1][0] = 0;
    for (int i = 0; i <= l - 1; ++i)
    {
        for (int j = l - 1; j <= r; ++j)
        {
            for (int k = 0; k <= kk; ++k)
            {
                if (k + 1 <= kk)
                    dp[i][j][k + 1] = min(dp[i][j][k + 1], dp[i][j][k]);
                if (i != l - 1)
                    dp[i + 1][j][k] = min(dp[i + 1][j][k], dp[i][j][k]);
                if (j != r)
                    dp[i][j + 1][k] = min(dp[i][j + 1][k], dp[i][j][k] + a[j + 1]);
                if (i != l - 1 && j != r && k + abs(i + 1 - (j + 1)) <= kk)
                    dp[i + 1][j + 1][k + abs(i + 1 - (j + 1))] = min(dp[i + 1][j + 1][k + abs(i + 1 - (j + 1))],
                                                                     dp[i][j][k] + a[i + 1]);
            }
        }
    }
    dp[n + 1][r + 1][0] = 0;
    for (int i = n + 1; i >= r + 1; --i)
    {
        for (int j = r + 1; j >= l; --j)
        {
            for (int k = 0; k <= kk; ++k)
            {
                if (k + 1 <= kk)
                    dp[i][j][k + 1] = min(dp[i][j][k + 1], dp[i][j][k]);
                if (i != r + 1)
                    dp[i - 1][j][k] = min(dp[i - 1][j][k], dp[i][j][k]);
                if (j != l)
                    dp[i][j - 1][k] = min(dp[i][j - 1][k], dp[i][j][k] + a[j - 1]);
                if (i != r + 1 && j != l && k + abs(i - 1 - (j - 1)) <= kk)
                    dp[i - 1][j - 1][k + abs(i - 1 - (j - 1))] = min(dp[i - 1][j - 1][k + abs(i - 1 - (j - 1))],
                                                                     dp[i][j][k] + a[i - 1]);
            }
        }
    }
    int ans = s;
    for (int i = l - 1; i <= r; ++i)
    {
        for (int k = 0; k <= kk; ++k)
        {
            ans = min(ans, dp[l - 1][i][k] + dp[r + 1][i + 1][kk - k]);
        }
    }
    printf("%d\n", ans);
    return 0;
}

Compilation message

holding.cpp: In function 'int main()':
holding.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d%d", &n, &l, &r, &kk);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
holding.cpp:15:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &a[i]);
         ~~~~~^~~~~~~~~~~~~

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 106360 KB Output is correct
2 Correct 78 ms 106232 KB Output is correct
3 Correct 72 ms 106232 KB Output is correct
4 Correct 69 ms 106360 KB Output is correct
5 Correct 75 ms 106232 KB Output is correct
6 Correct 72 ms 106232 KB Output is correct
7 Correct 69 ms 106232 KB Output is correct

Subtask #2
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 106360 KB Output is correct
2 Correct 78 ms 106232 KB Output is correct
3 Correct 72 ms 106232 KB Output is correct
4 Correct 69 ms 106360 KB Output is correct
5 Correct 75 ms 106232 KB Output is correct
6 Correct 72 ms 106232 KB Output is correct
7 Correct 69 ms 106232 KB Output is correct
8 Correct 71 ms 106232 KB Output is correct
9 Correct 76 ms 106164 KB Output is correct
10 Correct 79 ms 106232 KB Output is correct
11 Correct 71 ms 106232 KB Output is correct
12 Correct 70 ms 106232 KB Output is correct
13 Correct 81 ms 106232 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 106360 KB Output is correct
2 Correct 78 ms 106232 KB Output is correct
3 Correct 72 ms 106232 KB Output is correct
4 Correct 69 ms 106360 KB Output is correct
5 Correct 75 ms 106232 KB Output is correct
6 Correct 72 ms 106232 KB Output is correct
7 Correct 69 ms 106232 KB Output is correct
8 Correct 71 ms 106232 KB Output is correct
9 Correct 76 ms 106164 KB Output is correct
10 Correct 79 ms 106232 KB Output is correct
11 Correct 71 ms 106232 KB Output is correct
12 Correct 70 ms 106232 KB Output is correct
13 Correct 81 ms 106232 KB Output is correct
14 Correct 67 ms 106228 KB Output is correct
15 Correct 68 ms 106232 KB Output is correct
16 Correct 71 ms 106360 KB Output is correct
17 Correct 69 ms 106232 KB Output is correct
18 Correct 71 ms 106232 KB Output is correct
19 Correct 76 ms 106232 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 106360 KB Output is correct
2 Correct 78 ms 106232 KB Output is correct
3 Correct 72 ms 106232 KB Output is correct
4 Correct 69 ms 106360 KB Output is correct
5 Correct 75 ms 106232 KB Output is correct
6 Correct 72 ms 106232 KB Output is correct
7 Correct 69 ms 106232 KB Output is correct
8 Correct 71 ms 106232 KB Output is correct
9 Correct 76 ms 106164 KB Output is correct
10 Correct 79 ms 106232 KB Output is correct
11 Correct 71 ms 106232 KB Output is correct
12 Correct 70 ms 106232 KB Output is correct
13 Correct 81 ms 106232 KB Output is correct
14 Correct 67 ms 106228 KB Output is correct
15 Correct 68 ms 106232 KB Output is correct
16 Correct 71 ms 106360 KB Output is correct
17 Correct 69 ms 106232 KB Output is correct
18 Correct 71 ms 106232 KB Output is correct
19 Correct 76 ms 106232 KB Output is correct
20 Correct 73 ms 106232 KB Output is correct
21 Correct 73 ms 106304 KB Output is correct
22 Correct 70 ms 106244 KB Output is correct
23 Correct 71 ms 106360 KB Output is correct
24 Correct 74 ms 106232 KB Output is correct
25 Correct 102 ms 106232 KB Output is correct