oj.uz

Submission #283492

# Submission time Handle Problem Language Result Execution time Memory
283492 2020-08-25T20:45:49 Z shayan_p Wombats (IOI13_wombats) C++14
100 / 100
 9610 ms 112260 KB 
// And you curse yourself for things you never done

#include<bits/stdc++.h>
#include "wombats.h"

#define F first
#define S second
#define PB push_back
#define sz(s) int((s).size())
#define bit(n,k) (((n)>>(k))&1)

using namespace std;

typedef long long ll;
typedef pair<int,int> pii;

const int maxn = 5010, maxm = 210, SQ = 20, MAX = 4 * (maxn / SQ +1) , mod = 1e9 + 7, inf = 1e9 + 10;

int n, m;
int tmp[maxm][maxm], opt[maxm][maxm];

void knuth(int a[maxm][maxm], int b[maxm][maxm], int ans[maxm][maxm]){
    for(int i = 0; i < m; i++){
	for(int j = 0; j < m; j++)
	    tmp[i][j] = inf;
    }    
    for(int i = 0; i < m; i++){
	for(int j = 0; j < m; j++){
	    int x = a[i][j] + b[j][i];
	    if(x < tmp[i][i])
		opt[i][i] = j, tmp[i][i] = x;
	}
    }
    for(int ln = 1; ln < m; ln++){
	for(int i = 0; i+ln < m; i++){
	    int j = i + ln;
	    for(int k = opt[i][j-1]; k <= opt[i+1][j]; k++){
		int x = a[i][k] + b[k][j];
		if(x < tmp[i][j])
		    opt[i][j] = k, tmp[i][j] = x;			
	    }
	}
    }
    for(int ln = 1; ln < m; ln++){
	for(int i = ln; i < m; i++){
	    int j = i - ln;
	    for(int k = opt[i-1][j]; k <= opt[i][j+1]; k++){
		int x = a[i][k] + b[k][j];
		if(x < tmp[i][j])
		    opt[i][j] = k, tmp[i][j] = x;
	    }
	}
    }
    for(int i = 0; i < m; i++){
	for(int j = 0; j < m; j++)
	    ans[i][j] = tmp[i][j];
    }
}

int cx[maxn][maxm], cy[maxn][maxm];

int ds[MAX][maxm][maxm];

int tmp2[maxm][maxm];

void restart(int l, int r, int ans[maxm][maxm]){
    for(int a = 0; a < m; a++){
	ans[a][a] = 0;
	for(int b = a+1; b < m; b++)
	    ans[a][b] = ans[a][b-1] + cy[l][b-1];
	for(int b = a-1; b >= 0; b--)
	    ans[a][b] = ans[a][b+1] + cy[l][b];
    }
    for(int w = l+1; w <= r; w++){
	for(int a = 0; a < m; a++){
	    tmp2[a][a] = cx[w-1][a];
	    for(int b = a+1; b < m; b++)
		tmp2[a][b] = tmp2[a][b-1] + cy[w][b-1];
	    for(int b = a-1; b >= 0; b--)
		tmp2[a][b] = tmp2[a][b+1] + cy[w][b];
	}
	knuth(ans, tmp2, ans);
    }
}
void build(int l = 0, int r = n, int id = 1){
    assert(id < MAX);
    if(r-l <= SQ){
	restart(l, r, ds[id]);
	return;
    }
    int mid = (l+r) >> 1;
    build(l, mid, 2*id);
    build(mid, r, 2*id+1);
    knuth(ds[2*id], ds[2*id+1], ds[id]);
}
void change(int pos, int l = 0, int r = n, int id = 1){
    if(r < pos || pos < l)
	return;
    if(r-l <= SQ){
	restart(l, r, ds[id]);
	return;	    
    }
    int mid = (l+r) >> 1;
    change(pos, l, mid, 2*id);
    change(pos, mid, r, 2*id+1);
    knuth(ds[2*id], ds[2*id+1], ds[id]);
}
void init(int n, int m, int H[5000][200], int V[5000][200]){
    --n;
    ::n = n, ::m = m;
    for(int i = 0; i <= n; i++){
	for(int j = 0; j < m; j++)
	    cy[i][j] = H[i][j], cx[i][j] = V[i][j];
    }
    build();    
}
void changeH(int P, int Q, int W) {// Y
    cy[P][Q] = W;
    change(P);
}
void changeV(int P, int Q, int W){ // X
    cx[P][Q] = W;
    change(P);
}
int escape(int V1, int V2){
    return ds[1][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 10 ms 14720 KB Output is correct
2 Correct 11 ms 14720 KB Output is correct
3 Correct 93 ms 16248 KB Output is correct
4 Correct 10 ms 14720 KB Output is correct
5 Correct 10 ms 14720 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 512 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 1 ms 512 KB Output is correct
8 Correct 1 ms 512 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 1 ms 512 KB Output is correct
11 Correct 84 ms 1528 KB Output is correct
12 Correct 1 ms 512 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 212 ms 2424 KB Output is correct
2 Correct 158 ms 2176 KB Output is correct
3 Correct 222 ms 2168 KB Output is correct
4 Correct 220 ms 2424 KB Output is correct
5 Correct 219 ms 2176 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 763 ms 2296 KB Output is correct
10 Correct 1 ms 384 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 19072 KB Output is correct
2 Correct 13 ms 19072 KB Output is correct
3 Correct 14 ms 19072 KB Output is correct
4 Correct 55 ms 20088 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 215 ms 2304 KB Output is correct
2 Correct 162 ms 2304 KB Output is correct
3 Correct 220 ms 2176 KB Output is correct
4 Correct 213 ms 2296 KB Output is correct
5 Correct 214 ms 2168 KB Output is correct
6 Correct 13 ms 19072 KB Output is correct
7 Correct 13 ms 19072 KB Output is correct
8 Correct 13 ms 19072 KB Output is correct
9 Correct 54 ms 19832 KB Output is correct
10 Correct 12 ms 14720 KB Output is correct
11 Correct 10 ms 14720 KB Output is correct
12 Correct 93 ms 16248 KB Output is correct
13 Correct 10 ms 14720 KB Output is correct
14 Correct 9 ms 14720 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 1 ms 512 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 1 ms 512 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 1 ms 512 KB Output is correct
23 Correct 1 ms 512 KB Output is correct
24 Correct 1 ms 488 KB Output is correct
25 Correct 83 ms 1540 KB Output is correct
26 Correct 1 ms 512 KB Output is correct
27 Correct 758 ms 2272 KB Output is correct
28 Correct 1991 ms 61152 KB Output is correct
29 Correct 2193 ms 58232 KB Output is correct
30 Correct 2177 ms 58360 KB Output is correct
31 Correct 2020 ms 62072 KB Output is correct
32 Correct 1 ms 384 KB Output is correct

Subtask #6
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 219 ms 2260 KB Output is correct
2 Correct 154 ms 2176 KB Output is correct
3 Correct 223 ms 2176 KB Output is correct
4 Correct 220 ms 2296 KB Output is correct
5 Correct 216 ms 2176 KB Output is correct
6 Correct 13 ms 19072 KB Output is correct
7 Correct 13 ms 19072 KB Output is correct
8 Correct 16 ms 19072 KB Output is correct
9 Correct 54 ms 19960 KB Output is correct
10 Correct 10 ms 14720 KB Output is correct
11 Correct 10 ms 14720 KB Output is correct
12 Correct 89 ms 16248 KB Output is correct
13 Correct 10 ms 14720 KB Output is correct
14 Correct 10 ms 14720 KB Output is correct
15 Correct 2552 ms 102984 KB Output is correct
16 Correct 9610 ms 104868 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 512 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 1 ms 512 KB Output is correct
23 Correct 1 ms 512 KB Output is correct
24 Correct 1 ms 512 KB Output is correct
25 Correct 1 ms 512 KB Output is correct
26 Correct 1 ms 512 KB Output is correct
27 Correct 86 ms 2808 KB Output is correct
28 Correct 1 ms 512 KB Output is correct
29 Correct 783 ms 2304 KB Output is correct
30 Correct 1947 ms 64760 KB Output is correct
31 Correct 7840 ms 111312 KB Output is correct
32 Correct 7818 ms 111596 KB Output is correct
33 Correct 2217 ms 62072 KB Output is correct
34 Correct 8330 ms 108032 KB Output is correct
35 Correct 2168 ms 61576 KB Output is correct
36 Correct 8271 ms 108140 KB Output is correct
37 Correct 2087 ms 66552 KB Output is correct
38 Correct 8138 ms 112260 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 8376 ms 108008 KB Output is correct