제출 #16841

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
16841	2015-10-16 10:43:40	kdh9949	포탈들 (BOI14_portals)	C++98	70 / 100	1000 ms	40568 KiB

portals

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#include <stdio.h>
#include <queue>
#include <algorithm>
using namespace std;
struct mindol{int x,y,t;bool operator<(const mindol &a)const{return t>a.t;}};
priority_queue<mindol> pq;
char m[1010][1010];
int dt[4][1010][1010],dist[1010][1010];
int dx[4]={1,-1,0,0},dy[4]={0,0,1,-1};
int w,h,gx,gy,flag;
int main(){
    scanf("%d%d",&w,&h);
    for(int i=1;i<=w;i++){
        scanf("%s",m[i]+1);
    }
    for(int i=0;i<=w+1;i++)for(int j=0;j<4;j++)m[i][0]=m[i][h+1]='#',dt[j][i][0]=dt[j][i][h+1]=-1;
    for(int i=0;i<=h+1;i++)for(int j=0;j<4;j++)m[0][i]=m[w+1][i]='#',dt[j][0][i]=dt[j][w+1][i]=-1;
    for(int i=1;i<=w;i++){
        for(int j=1;j<=h;j++){
            dist[i][j]=987654321;
            if(m[i][j]=='S')pq.push({i,j,0});
            if(m[i][j]=='C')gx=i,gy=j;
            dt[0][w+1-i][j]=( m[w+1-i][j]=='#' ? -1 :dt[0][w+2-i][j]+1);
            dt[1][i][j]=(m[i][j]=='#' ? -1 : dt[1][i-1][j]+1);
            dt[2][i][h+1-j]=(m[i][h+1-j]=='#' ? -1 : dt[2][i][h+2-j]+1);
            dt[3][i][j]=(m[i][j]=='#' ? -1 : dt[3][i][j-1]+1);
        }
 
 
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