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Submission #16754

# Submission time Handle Problem Language Result Execution time Memory
16754 2015-09-18T12:22:33 Z CodingBug Wombats (IOI13_wombats) C++
100 / 100
 7631 ms 180520 KB 
#include "wombats.h"
#include <algorithm>
#define R 5000
#define C 200
#define INF 1000000000

using namespace std;

struct Node{
    int d[C][C];
    Node *chi[2];
} *rt;

int r,c;
int h[R][C],v[R][C];

void dp(int d[C][C],int s,int e){
    int i,j,k;

    for(k=0;k<c;k++){
        for(j=0;j<c;j++) d[k][j]=(k==j ? 0 : INF+1);

        for(i=s;i<e;i++){
            for(j=1;j<c;j++) d[k][j]=min(d[k][j],d[k][j-1]+h[i][j-1]);
            for(j=c-2;j>=0;j--) d[k][j]=min(d[k][j],d[k][j+1]+h[i][j]);
            for(j=0;j<c;j++) d[k][j]+=v[i][j];
        }
        for(j=1;j<c;j++) d[k][j]=min(d[k][j],d[k][j-1]+h[i][j-1]);
        for(j=c-2;j>=0;j--) d[k][j]=min(d[k][j],d[k][j+1]+h[i][j]);
    }
}

void mgDynamic(Node *no,int mid){
    int i,j,k,t=0;
    int l[2][C+1];
    l[0][0]=0;
    l[0][1]=c-1;

    for(i=-(c-1);i<0;i++){
        l[!t][0]=0;
        for(j=-i;j<c;j++){
            int p;
            p=k=l[t][j+i];
            no->d[j][j+i]=no->chi[0]->d[j][k]+no->chi[1]->d[k][j+i]+v[mid][k];
            for(k=l[t][j+i]+1;k<=l[t][j+i+1];k++){
                if(no->d[j][j+i]>no->chi[0]->d[j][k]+no->chi[1]->d[k][j+i]+v[mid][k]){
                    p=k;
                    no->d[j][j+i]=no->chi[0]->d[j][k]+no->chi[1]->d[k][j+i]+v[mid][k];
                }
            }
            l[!t][j+i+1]=p;
        }
        l[!t][i+c+1]=c-1;
        t=!t;
    }
    for(i=0;i<c;i++){
        for(j=0;j<c-i;j++){
            int p;
            p=k=l[t][j+i];
            no->d[j][j+i]=no->chi[0]->d[j][k]+no->chi[1]->d[k][j+i]+v[mid][k];
            for(k=l[t][j+i]+1;k<=l[t][j+i+1];k++){
                if(no->d[j][j+i]>no->chi[0]->d[j][k]+no->chi[1]->d[k][j+i]+v[mid][k]){
                    p=k;
                    no->d[j][j+i]=no->chi[0]->d[j][k]+no->chi[1]->d[k][j+i]+v[mid][k];
                }
            }
            l[!t][j+i+1]=p;
        }
        t=!t;
    }
}

void setTree(int s,int e,Node *no){
    if(s+16>=e){
        dp(no->d,s,e);
        return;
    }
    int mid=(s+e)/2;
    if(!no->chi[0]) no->chi[0]=new Node();
    if(!no->chi[1]) no->chi[1]=new Node();
    setTree(s,mid,no->chi[0]);
    setTree(mid+1,e,no->chi[1]);

    mgDynamic(no,mid);
}

void updateTree(int s,int e,int x,Node *no){
    if(e<x || x<s) return;
    if(s+16>=e){
        dp(no->d,s,e);
        return;
    }
    int mid=(s+e)/2;
    updateTree(s,mid,x,no->chi[0]);
    updateTree(mid+1,e,x,no->chi[1]);

    mgDynamic(no,mid);
}

void init(int _r, int _c, int H[5000][200], int V[5000][200]) {
    int i,j;
    r=_r; c=_c;
    for(i=0;i<r;i++) for(j=0;j<c-1;j++) h[i][j]=H[i][j];
    for(i=0;i<r-1;i++) for(j=0;j<c;j++) v[i][j]=V[i][j];

    rt=new Node();
    setTree(0,r-1,rt);
}

void changeH(int P, int Q, int W) {
    h[P][Q]=W;
    updateTree(0,r-1,P,rt);
}

void changeV(int P, int Q, int W) {
    v[P][Q]=W;
    updateTree(0,r-1,P,rt);
}

int escape(int V1, int V2) {
    return rt->d[V1][V2];
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 180520 KB Output is correct - 505 tokens
2 Correct 0 ms 180520 KB Output is correct - 505 tokens
3 Correct 119 ms 180520 KB Output is correct - 200005 tokens
4 Correct 17 ms 180520 KB Output is correct - 505 tokens
5 Correct 29 ms 180520 KB Output is correct - 505 tokens
6 Correct 0 ms 17000 KB Output is correct - 6 tokens
7 Correct 0 ms 17000 KB Output is correct - 6 tokens
8 Correct 0 ms 17000 KB Output is correct - 6 tokens

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 17000 KB Output is correct - 6 tokens
2 Correct 0 ms 17000 KB Output is correct - 6 tokens
3 Correct 0 ms 17000 KB Output is correct - 6 tokens
4 Correct 0 ms 17320 KB Output is correct - 405 tokens
5 Correct 0 ms 17320 KB Output is correct - 405 tokens
6 Correct 0 ms 17320 KB Output is correct - 405 tokens
7 Correct 0 ms 17320 KB Output is correct - 405 tokens
8 Correct 0 ms 17320 KB Output is correct - 366 tokens
9 Correct 0 ms 17320 KB Output is correct - 405 tokens
10 Correct 0 ms 17320 KB Output is correct - 366 tokens
11 Correct 87 ms 17320 KB Output is correct - 200005 tokens
12 Correct 0 ms 17320 KB Output is correct - 405 tokens

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 170 ms 19240 KB Output is correct - 105 tokens
2 Correct 168 ms 19240 KB Output is correct - 105 tokens
3 Correct 185 ms 19240 KB Output is correct - 105 tokens
4 Correct 184 ms 19240 KB Output is correct - 105 tokens
5 Correct 176 ms 19240 KB Output is correct - 105 tokens
6 Correct 0 ms 17000 KB Output is correct - 6 tokens
7 Correct 0 ms 17000 KB Output is correct - 6 tokens
8 Correct 0 ms 17000 KB Output is correct - 6 tokens
9 Correct 790 ms 19240 KB Output is correct - 105 tokens
10 Correct 0 ms 17000 KB Output is correct - 8 tokens

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 180520 KB Output is correct - 1005 tokens
2 Correct 22 ms 180520 KB Output is correct - 1005 tokens
3 Correct 5 ms 180520 KB Output is correct - 1005 tokens
4 Correct 61 ms 180520 KB Output is correct - 100005 tokens

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 173 ms 19240 KB Output is correct - 105 tokens
2 Correct 164 ms 19240 KB Output is correct - 105 tokens
3 Correct 186 ms 19240 KB Output is correct - 105 tokens
4 Correct 186 ms 19240 KB Output is correct - 105 tokens
5 Correct 181 ms 19240 KB Output is correct - 105 tokens
6 Correct 11 ms 180520 KB Output is correct - 1005 tokens
7 Correct 45 ms 180520 KB Output is correct - 1005 tokens
8 Correct 16 ms 180520 KB Output is correct - 1005 tokens
9 Correct 48 ms 180520 KB Output is correct - 100005 tokens
10 Correct 34 ms 180520 KB Output is correct - 505 tokens
11 Correct 29 ms 180520 KB Output is correct - 505 tokens
12 Correct 138 ms 180520 KB Output is correct - 200005 tokens
13 Correct 19 ms 180520 KB Output is correct - 505 tokens
14 Correct 0 ms 180520 KB Output is correct - 505 tokens
15 Correct 0 ms 17000 KB Output is correct - 6 tokens
16 Correct 0 ms 17000 KB Output is correct - 6 tokens
17 Correct 0 ms 17000 KB Output is correct - 6 tokens
18 Correct 0 ms 17320 KB Output is correct - 405 tokens
19 Correct 0 ms 17320 KB Output is correct - 405 tokens
20 Correct 0 ms 17320 KB Output is correct - 405 tokens
21 Correct 0 ms 17320 KB Output is correct - 405 tokens
22 Correct 0 ms 17320 KB Output is correct - 366 tokens
23 Correct 0 ms 17320 KB Output is correct - 405 tokens
24 Correct 0 ms 17320 KB Output is correct - 366 tokens
25 Correct 80 ms 17320 KB Output is correct - 200005 tokens
26 Correct 0 ms 17320 KB Output is correct - 405 tokens
27 Correct 798 ms 19240 KB Output is correct - 105 tokens
28 Correct 1679 ms 180520 KB Output is correct - 50005 tokens
29 Correct 1925 ms 98600 KB Output is correct - 50005 tokens
30 Correct 1954 ms 98600 KB Output is correct - 50005 tokens
31 Correct 1752 ms 180520 KB Output is correct - 200005 tokens
32 Correct 0 ms 17000 KB Output is correct - 8 tokens

Subtask #6
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 177 ms 19240 KB Output is correct - 105 tokens
2 Correct 168 ms 19240 KB Output is correct - 105 tokens
3 Correct 178 ms 19240 KB Output is correct - 105 tokens
4 Correct 184 ms 19240 KB Output is correct - 105 tokens
5 Correct 181 ms 19240 KB Output is correct - 105 tokens
6 Correct 0 ms 180520 KB Output is correct - 1005 tokens
7 Correct 42 ms 180520 KB Output is correct - 1005 tokens
8 Correct 0 ms 180520 KB Output is correct - 1005 tokens
9 Correct 69 ms 180520 KB Output is correct - 100005 tokens
10 Correct 12 ms 180520 KB Output is correct - 505 tokens
11 Correct 11 ms 180520 KB Output is correct - 505 tokens
12 Correct 84 ms 180520 KB Output is correct - 200005 tokens
13 Correct 21 ms 180520 KB Output is correct - 505 tokens
14 Correct 12 ms 180520 KB Output is correct - 505 tokens
15 Correct 2571 ms 180520 KB Output is correct - 11 tokens
16 Correct 6877 ms 180520 KB Output is correct - 200005 tokens
17 Correct 0 ms 17000 KB Output is correct - 6 tokens
18 Correct 0 ms 17000 KB Output is correct - 6 tokens
19 Correct 0 ms 17000 KB Output is correct - 6 tokens
20 Correct 0 ms 17320 KB Output is correct - 405 tokens
21 Correct 2 ms 17320 KB Output is correct - 405 tokens
22 Correct 0 ms 17320 KB Output is correct - 405 tokens
23 Correct 0 ms 17320 KB Output is correct - 405 tokens
24 Correct 0 ms 17320 KB Output is correct - 366 tokens
25 Correct 0 ms 17320 KB Output is correct - 405 tokens
26 Correct 0 ms 17320 KB Output is correct - 366 tokens
27 Correct 52 ms 17320 KB Output is correct - 200005 tokens
28 Correct 0 ms 17320 KB Output is correct - 405 tokens
29 Correct 799 ms 19240 KB Output is correct - 105 tokens
30 Correct 1736 ms 180520 KB Output is correct - 50005 tokens
31 Correct 6328 ms 180520 KB Output is correct - 100005 tokens
32 Correct 6349 ms 180520 KB Output is correct - 100005 tokens
33 Correct 1857 ms 98600 KB Output is correct - 50005 tokens
34 Correct 7262 ms 98600 KB Output is correct - 100005 tokens
35 Correct 1993 ms 98600 KB Output is correct - 50005 tokens
36 Correct 7330 ms 98600 KB Output is correct - 100005 tokens
37 Correct 1705 ms 180520 KB Output is correct - 200005 tokens
38 Correct 6446 ms 180520 KB Output is correct - 200005 tokens
39 Correct 0 ms 17000 KB Output is correct - 8 tokens
40 Correct 7631 ms 98600 KB Output is correct - 100005 tokens