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Submission #586854

# Submission time Handle Problem Language Result Execution time Memory
586854 2022-06-30T18:51:44 Z FatihSolak Wombats (IOI13_wombats) C++17
100 / 100
 8848 ms 111920 KB 
#include "wombats.h"
#include <bits/stdc++.h>
#define R 5005
#define C 205
using namespace std;
const int block = 40;
int r,c;
int h[R][C];
int w[R][C];
int opt[C][C];
struct node{
    int a[C][C];
    int l,r;
    node(int init){
        for(int i = 0;i<C;i++){
            for(int j = 0;j<C;j++){
                a[i][j] = init;
            }
        }
    }
}tmp(0);
node merge(node a,node b){
    for(int dif = -c-1;dif < c ;dif++){
        for(int i = max(0,-dif);i + max(0,dif)<c;i++){
            int j = dif + i;
            int l = 0,r = c-1;
            if(j)
                l = opt[i][j-1];
            if(i + 1 != c)
                r = opt[i+1][j];
            tmp.a[i][j] = 1e9;
            for(int x = l;x<=r;x++){
                if(a.a[i][x] + b.a[x][j] < tmp.a[i][j]){
                    tmp.a[i][j] = a.a[i][x] + b.a[x][j];
                    opt[i][j] = x;
                }
            }
        }
    }
    return tmp;
}
struct SegTree{
    vector<node> t;
    int n;
    void init(int size){
        n = size;
        t.assign(4*n + 5,1e9);
        build(1,0,n-1);
    }
    void build(int v,int tl,int tr){
        t[v].l = tl * block;
        t[v].r = min(r-1,(tr + 1) * block - 1);
        if(tl == tr){
            for(int i = 0;i<c;i++){
                t[v].a[i][i] = 0;
                for(int j = t[v].l;j<=t[v].r;j++){
                    for(int d=1;d<c;d++){
                        t[v].a[i][d] = min(t[v].a[i][d],t[v].a[i][d-1] + h[j][d-1]);
                    }
                    for(int d=c-2;d>=0;d--){
                        t[v].a[i][d] = min(t[v].a[i][d],t[v].a[i][d+1] + h[j][d]);
                    }
                    for(int d=0;d<c;d++){
                        t[v].a[i][d] = t[v].a[i][d] + w[j][d];
                    }
                }
            }
            return;
        }
        int tm = (tl + tr)/2;
        build(v*2,tl,tm);
        build(v*2+1,tm+1,tr);
        t[v] = merge(t[v*2],t[v*2+1]);
    }
    void upd(int v,int tl,int tr,int pos){
        if(tl == tr){
            for(int i = 0;i<c;i++){
                t[v].a[i][i] = 0;
                for(int j = t[v].l;j<=t[v].r;j++){
                    for(int d=1;d<c;d++){
                        t[v].a[i][d] = min(t[v].a[i][d],t[v].a[i][d-1] + h[j][d-1]);
                    }
                    for(int d=c-2;d>=0;d--){
                        t[v].a[i][d] = min(t[v].a[i][d],t[v].a[i][d+1] + h[j][d]);
                    }
                    for(int d=0;d<c;d++){
                        t[v].a[i][d] = t[v].a[i][d] + w[j][d];
                    }
                }
            }
            return;
        }
        int tm = (tl + tr)/2;
        if(pos <= tm)
            upd(v*2,tl,tm,pos);
        else upd(v*2+1,tm+1,tr,pos);
        t[v] = merge(t[v*2],t[v*2+1]);
    }

    void upd(int pos){
        upd(1,0,n-1,pos);
    }

}tree;

void init(int r_, int c_, int h_[5000][200], int v_[5000][200]) {
    r = r_;
    c = c_;
    for(int i = 0;i<r;i++){
        for(int j = 0;j<c;j++){
            h[i][j] = h_[i][j];
            w[i][j] = v_[i][j];
        }
    }
    tree.init((r+block-1) / block);
}

void changeH(int p, int q, int x) {
    h[p][q] = x;
    tree.upd(p/block);
}

void changeV(int p, int q, int x) {
    w[p][q] = x;
    if(p % block == 0 && p)
        tree.upd(p/block - 1);
    tree.upd(p/block);
}

int escape(int v1, int v2) {
    return tree.t[1].a[v1][v2];
}

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 147 ms 96864 KB Output is correct
2 Correct 147 ms 96920 KB Output is correct
3 Correct 212 ms 98496 KB Output is correct
4 Correct 170 ms 96960 KB Output is correct
5 Correct 150 ms 96944 KB Output is correct
6 Correct 1 ms 2132 KB Output is correct
7 Correct 1 ms 2132 KB Output is correct
8 Correct 1 ms 2132 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2132 KB Output is correct
2 Correct 2 ms 2132 KB Output is correct
3 Correct 2 ms 2132 KB Output is correct
4 Correct 1 ms 2132 KB Output is correct
5 Correct 2 ms 2132 KB Output is correct
6 Correct 1 ms 2132 KB Output is correct
7 Correct 1 ms 2132 KB Output is correct
8 Correct 1 ms 2132 KB Output is correct
9 Correct 1 ms 2132 KB Output is correct
10 Correct 1 ms 2132 KB Output is correct
11 Correct 66 ms 3148 KB Output is correct
12 Correct 1 ms 2132 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 228 ms 4240 KB Output is correct
2 Correct 327 ms 4308 KB Output is correct
3 Correct 305 ms 4356 KB Output is correct
4 Correct 310 ms 4308 KB Output is correct
5 Correct 329 ms 4232 KB Output is correct
6 Correct 1 ms 2132 KB Output is correct
7 Correct 1 ms 2132 KB Output is correct
8 Correct 1 ms 2132 KB Output is correct
9 Correct 1593 ms 4360 KB Output is correct
10 Correct 1 ms 2132 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 151 ms 100880 KB Output is correct
2 Correct 156 ms 100868 KB Output is correct
3 Correct 174 ms 100980 KB Output is correct
4 Correct 175 ms 101564 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 230 ms 4308 KB Output is correct
2 Correct 327 ms 4308 KB Output is correct
3 Correct 311 ms 4308 KB Output is correct
4 Correct 311 ms 4308 KB Output is correct
5 Correct 332 ms 4308 KB Output is correct
6 Correct 145 ms 100744 KB Output is correct
7 Correct 155 ms 100860 KB Output is correct
8 Correct 162 ms 100864 KB Output is correct
9 Correct 192 ms 101604 KB Output is correct
10 Correct 153 ms 96840 KB Output is correct
11 Correct 147 ms 96864 KB Output is correct
12 Correct 198 ms 98564 KB Output is correct
13 Correct 155 ms 96852 KB Output is correct
14 Correct 137 ms 96980 KB Output is correct
15 Correct 1 ms 2132 KB Output is correct
16 Correct 1 ms 2132 KB Output is correct
17 Correct 1 ms 2132 KB Output is correct
18 Correct 1 ms 2132 KB Output is correct
19 Correct 1 ms 2132 KB Output is correct
20 Correct 2 ms 2132 KB Output is correct
21 Correct 1 ms 2132 KB Output is correct
22 Correct 1 ms 2132 KB Output is correct
23 Correct 1 ms 2132 KB Output is correct
24 Correct 1 ms 2132 KB Output is correct
25 Correct 68 ms 3308 KB Output is correct
26 Correct 1 ms 2132 KB Output is correct
27 Correct 1604 ms 4236 KB Output is correct
28 Correct 2336 ms 101476 KB Output is correct
29 Correct 2262 ms 84080 KB Output is correct
30 Correct 2261 ms 83952 KB Output is correct
31 Correct 2385 ms 102316 KB Output is correct
32 Correct 1 ms 2132 KB Output is correct

Subtask #6
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 233 ms 4332 KB Output is correct
2 Correct 325 ms 4360 KB Output is correct
3 Correct 310 ms 4308 KB Output is correct
4 Correct 309 ms 4236 KB Output is correct
5 Correct 330 ms 4308 KB Output is correct
6 Correct 157 ms 100868 KB Output is correct
7 Correct 160 ms 100824 KB Output is correct
8 Correct 175 ms 100840 KB Output is correct
9 Correct 191 ms 101584 KB Output is correct
10 Correct 139 ms 96904 KB Output is correct
11 Correct 149 ms 96952 KB Output is correct
12 Correct 209 ms 98624 KB Output is correct
13 Correct 156 ms 96856 KB Output is correct
14 Correct 155 ms 96872 KB Output is correct
15 Correct 1770 ms 101092 KB Output is correct
16 Correct 8848 ms 111920 KB Output is correct
17 Correct 1 ms 2132 KB Output is correct
18 Correct 1 ms 2132 KB Output is correct
19 Correct 1 ms 2132 KB Output is correct
20 Correct 2 ms 2144 KB Output is correct
21 Correct 2 ms 2132 KB Output is correct
22 Correct 1 ms 2132 KB Output is correct
23 Correct 2 ms 2132 KB Output is correct
24 Correct 1 ms 2132 KB Output is correct
25 Correct 1 ms 2132 KB Output is correct
26 Correct 2 ms 2144 KB Output is correct
27 Correct 65 ms 4464 KB Output is correct
28 Correct 1 ms 2132 KB Output is correct
29 Correct 1604 ms 4308 KB Output is correct
30 Correct 2328 ms 105036 KB Output is correct
31 Correct 8591 ms 109384 KB Output is correct
32 Correct 8641 ms 109556 KB Output is correct
33 Correct 2265 ms 87444 KB Output is correct
34 Correct 8423 ms 91696 KB Output is correct
35 Correct 2238 ms 87496 KB Output is correct
36 Correct 8540 ms 91476 KB Output is correct
37 Correct 2383 ms 106784 KB Output is correct
38 Correct 8656 ms 110012 KB Output is correct
39 Correct 1 ms 2132 KB Output is correct
40 Correct 8724 ms 91676 KB Output is correct