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Submission #281565

# Submission time Handle Problem Language Result Execution time Memory
281565 2020-08-23T08:04:57 Z Kastanda Wombats (IOI13_wombats) C++11
100 / 100
 4590 ms 99848 KB 
// M
#include<bits/stdc++.h>
#include "wombats.h"
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("O3")
#define lc (id << 1)
#define rc (lc ^ 1)
#define md ((l + r) >> 1)
using namespace std;
const int N = 5005, M = 202, MXS = 512, SQ = 20, INF = 1e9 + 9;
int n, m, H[N][M], V[N][M];
int dp[MXS][M][M];
int TMp[M][M], Opt[M][M];
inline void BuildBlock(int l, int r)
{
        memset(TMp, 63, sizeof(TMp));
        for (int st = 0; st < m; st ++)
        {
                TMp[st][st] = 0;
                for (int i = l; i < r; i ++)
                {
                        for (int j = 1; j < m; j ++)
                                TMp[st][j] = min(TMp[st][j], TMp[st][j - 1] + H[i][j - 1]);
                        for (int j = m - 2; j >= 0; j --)
                                TMp[st][j] = min(TMp[st][j], TMp[st][j + 1] + H[i][j]);
                        for (int j = 0; j < m; j ++)
                                TMp[st][j] += V[i][j];
                }
        }
}
inline void Merge(int id, int le, int ri)
{
        for (int sm = - m; sm < m; sm ++)
                for (int st = 0; st < m; st ++)
                {
                        int fn = sm + st;
                        if (fn < 0 || fn >= m)
                                continue;
                        int l = fn ? Opt[st][fn - 1] : 0;
                        int r = (st + 1 < m) ? Opt[st + 1][fn] : (m - 1);
                        int opt = -1, Mn = INF;
                        for (int i = l; i <= r; i ++)
                                if (Mn > dp[le][st][i] + dp[ri][i][fn])
                                        Mn = dp[le][st][i] + dp[ri][i][fn], opt = i;
                        Opt[st][fn] = opt;
                        dp[id][st][fn] = Mn;
                }
}
void BuildSegTree(int id = 1, int l = 0, int r = n)
{
        if (r - l <= SQ)
        {
                BuildBlock(l, r);
                memcpy(dp[id], TMp, sizeof(TMp));
                return ;
        }
        BuildSegTree(lc, l, md);
        BuildSegTree(rc, md, r);
        Merge(id, lc, rc);
}
void init(int _n, int _m, int _H[5000][200], int _V[5000][200])
{
        n = _n; m = _m;
        for (int i = 0; i < n; i ++)
                for (int j = 0; j + 1 < m; j ++)
                        H[i][j] = _H[i][j];
        for (int i = 0; i + 1 < n; i ++)
                for (int j = 0; j < m; j ++)
                        V[i][j] = _V[i][j];

        BuildSegTree();
}
void Update(int i, int id = 1, int l = 0, int r = n)
{
        if (r - l <= SQ)
        {
                BuildBlock(l, r);
                memcpy(dp[id], TMp, sizeof(TMp));
                return ;
        }
        if (i < md)
                Update(i, lc, l, md);
        else
                Update(i, rc, md, r);
        Merge(id, lc, rc);
}
void changeH(int r, int c, int w)
{
        H[r][c] = w;
        Update(r);
}
void changeV(int r, int c, int w)
{
        V[r][c] = w;
        Update(r);
}
int escape(int st, int fn)
{
        return dp[1][st][fn];
}

Compilation message

grader.c: In function 'int main()':
grader.c:15:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
   15 |  int res;
      |      ^~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 45 ms 50296 KB Output is correct
2 Correct 48 ms 50328 KB Output is correct
3 Correct 153 ms 51960 KB Output is correct
4 Correct 53 ms 50296 KB Output is correct
5 Correct 47 ms 50296 KB Output is correct
6 Correct 1 ms 640 KB Output is correct
7 Correct 1 ms 640 KB Output is correct
8 Correct 1 ms 640 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 672 KB Output is correct
2 Correct 1 ms 640 KB Output is correct
3 Correct 1 ms 640 KB Output is correct
4 Correct 2 ms 768 KB Output is correct
5 Correct 1 ms 768 KB Output is correct
6 Correct 1 ms 768 KB Output is correct
7 Correct 1 ms 768 KB Output is correct
8 Correct 1 ms 768 KB Output is correct
9 Correct 1 ms 768 KB Output is correct
10 Correct 2 ms 768 KB Output is correct
11 Correct 103 ms 1784 KB Output is correct
12 Correct 1 ms 768 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 2816 KB Output is correct
2 Correct 79 ms 2816 KB Output is correct
3 Correct 91 ms 2816 KB Output is correct
4 Correct 142 ms 2816 KB Output is correct
5 Correct 95 ms 2816 KB Output is correct
6 Correct 1 ms 640 KB Output is correct
7 Correct 1 ms 640 KB Output is correct
8 Correct 1 ms 640 KB Output is correct
9 Correct 375 ms 2816 KB Output is correct
10 Correct 1 ms 640 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 58448 KB Output is correct
2 Correct 50 ms 58360 KB Output is correct
3 Correct 55 ms 58364 KB Output is correct
4 Correct 114 ms 59256 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 91 ms 2816 KB Output is correct
2 Correct 82 ms 2816 KB Output is correct
3 Correct 94 ms 2816 KB Output is correct
4 Correct 93 ms 2816 KB Output is correct
5 Correct 91 ms 2816 KB Output is correct
6 Correct 54 ms 58360 KB Output is correct
7 Correct 53 ms 58360 KB Output is correct
8 Correct 55 ms 58360 KB Output is correct
9 Correct 94 ms 59256 KB Output is correct
10 Correct 45 ms 50304 KB Output is correct
11 Correct 56 ms 50300 KB Output is correct
12 Correct 132 ms 51960 KB Output is correct
13 Correct 46 ms 50296 KB Output is correct
14 Correct 45 ms 50304 KB Output is correct
15 Correct 1 ms 640 KB Output is correct
16 Correct 1 ms 640 KB Output is correct
17 Correct 1 ms 640 KB Output is correct
18 Correct 2 ms 768 KB Output is correct
19 Correct 2 ms 768 KB Output is correct
20 Correct 1 ms 768 KB Output is correct
21 Correct 1 ms 768 KB Output is correct
22 Correct 1 ms 768 KB Output is correct
23 Correct 1 ms 768 KB Output is correct
24 Correct 2 ms 768 KB Output is correct
25 Correct 138 ms 1784 KB Output is correct
26 Correct 1 ms 768 KB Output is correct
27 Correct 392 ms 2936 KB Output is correct
28 Correct 1317 ms 78616 KB Output is correct
29 Correct 1232 ms 76152 KB Output is correct
30 Correct 1297 ms 76024 KB Output is correct
31 Correct 1262 ms 79900 KB Output is correct
32 Correct 1 ms 768 KB Output is correct

Subtask #6
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 2840 KB Output is correct
2 Correct 78 ms 2816 KB Output is correct
3 Correct 92 ms 2816 KB Output is correct
4 Correct 90 ms 2816 KB Output is correct
5 Correct 90 ms 2816 KB Output is correct
6 Correct 54 ms 58360 KB Output is correct
7 Correct 53 ms 58360 KB Output is correct
8 Correct 60 ms 58360 KB Output is correct
9 Correct 97 ms 59232 KB Output is correct
10 Correct 48 ms 50296 KB Output is correct
11 Correct 47 ms 50296 KB Output is correct
12 Correct 126 ms 51960 KB Output is correct
13 Correct 50 ms 50296 KB Output is correct
14 Correct 47 ms 50428 KB Output is correct
15 Correct 1110 ms 98012 KB Output is correct
16 Correct 4590 ms 99848 KB Output is correct
17 Correct 1 ms 640 KB Output is correct
18 Correct 1 ms 640 KB Output is correct
19 Correct 1 ms 640 KB Output is correct
20 Correct 1 ms 768 KB Output is correct
21 Correct 1 ms 768 KB Output is correct
22 Correct 1 ms 768 KB Output is correct
23 Correct 1 ms 768 KB Output is correct
24 Correct 1 ms 768 KB Output is correct
25 Correct 1 ms 768 KB Output is correct
26 Correct 1 ms 768 KB Output is correct
27 Correct 83 ms 1784 KB Output is correct
28 Correct 1 ms 768 KB Output is correct
29 Correct 382 ms 2816 KB Output is correct
30 Correct 1169 ms 78880 KB Output is correct
31 Correct 4221 ms 98868 KB Output is correct
32 Correct 4346 ms 98940 KB Output is correct
33 Correct 1187 ms 76116 KB Output is correct
34 Correct 4207 ms 95928 KB Output is correct
35 Correct 1220 ms 75768 KB Output is correct
36 Correct 4340 ms 96128 KB Output is correct
37 Correct 1330 ms 79736 KB Output is correct
38 Correct 4392 ms 99620 KB Output is correct
39 Correct 1 ms 640 KB Output is correct
40 Correct 4478 ms 95940 KB Output is correct