oj.uz

Submission #4612

# Submission time Handle Problem Language Result Execution time Memory
4612 2013-11-10T11:19:31 Z cki86201 Wombats (IOI13_wombats) C++
0 / 100
 300 ms 177660 KB 
#include "wombats.h"
#include<stdlib.h>
#include<queue>
#include<vector>
#include<functional>
#include<string.h>
using namespace std;

#define X first
#define Y second

typedef pair<int,int> P;
typedef pair<int,P> Pi;
const int id = 512;
const int inf = 1e9;
const int bz = 10;

int H[5000][200],V[5000][200];
int T[1030][200][200];
int tmp[bz][200];
int R,C;

void upd(int x,int y)
{
	int i,j;
	memset(tmp[0],0,sizeof(tmp[0]));
	for(i=x-1;i>=0;i--)tmp[0][i]=tmp[0][i+1]+H[bz*y][i];
	for(i=x+1;i<C;i++)tmp[0][i] =tmp[0][i-1]+H[bz*y][i-1];
	for(i=1;i<bz && bz*y+i<R;i++){
		for(j=0;j<C;j++)tmp[i][j]=tmp[i-1][j]+V[bz*y+i-1][j];
		for(j=C-2;j>=0;j--)tmp[i][j]=min(tmp[i][j],tmp[i][j+1]+H[bz*y+i][j]);
		for(j=1;j<C;j++)tmp[i][j]=min(tmp[i][j],tmp[i][j-1]+H[bz*y+i][j-1]);
	}
	for(j=0;j<C;j++)T[id+y][x][j]=tmp[i-1][j];
}

void Union(int t)
{
	int i,j,k;
	int sk[200];
	for(i=0;i<C;i++)sk[i]=0;
	for(i=0;i<C;i++)for(j=0;j<C;j++)T[t][i][j]=inf;
	for(i=C-1;i>=-C+1;i--){
		for(j=min(C-1,C-i-1);j>=0&&j+i>=0;j--){
			int s=j==max(0,-i)?0:sk[j-1];
			int d=j==min(C-1,C-i-1)?C-1:sk[j];
			for(k=s;k<=d;k++){
				if(T[t][j][j+i] > T[t<<1][j][k] + T[t<<1|1][k][j+i]){
					T[t][j][j+i]=T[t<<1][j][k] + T[t<<1|1][k][j+i];
					sk[j]=k;
				}
			}
		}
	}
	for(i=0;i<C;i++)if(T[t][i][i]==inf)T[t][i][i]=0;
}

void init(int R, int C, int H_[5000][200], int V_[5000][200]){
	int i,j;
	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];
	::R=R;
	::C=C;
	for(i=0;i<C;i++){
		for(j=0;bz*j<R;j++){
			upd(i,j);
		}
		for(;j<id;j++){
			for(int u=0;u<C;u++)T[id+j][i][u]=i==u?0:inf;
		}
	}
	for(i=id-1;i;i--)Union(i);
}

void changeH(int P, int Q, int W){
	H[P][Q]=W;
	int i,r=P/bz;
	for(i=0;i<C;i++)upd(i,r);
	if(P%bz == 0 && P){
		for(i=0;i<C;i++)upd(i,r-1);
		int t=(r+id-1)/2;
		while(t){Union(t);t>>=1;}
	}
	r+=id;
	r>>=1;
	while(r){
		Union(r);
		r>>=1;
	}
}

void changeV(int P, int Q, int W) {
    V[P][Q]=W;
    int i,r=P/bz;
	for(i=0;i<C;i++)upd(i,r);
	r+=id;
	r>>=1;
	while(r){
		Union(r);
		r>>=1;
	}
}

int escape(int V1, int V2){
	return T[1][V1][V2];
}

Subtask #1
0.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 177660 KB Output is correct
2 Incorrect 0 ms 177660 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 177660 KB Output is correct
2 Correct 0 ms 177660 KB Output is correct
3 Correct 0 ms 177660 KB Output is correct
4 Incorrect 4 ms 177660 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0.0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 300 ms 177660 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0.0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 177660 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0.0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 284 ms 177660 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0.0 / 24.0

# Verdict Execution time Memory Grader output
1 Incorrect 292 ms 177660 KB Output isn't correct
2 Halted 0 ms 0 KB -