ACM对拍造数据

题目:http://acm.hdu.edu.cn/showproblem.php?pid=1253

四个程序:

错误程序

#include<iostream>
#include<cstdlib>
#include<cstring>
#include<queue>
using namespace std;
const int maxn=60;
int mp[maxn][maxn][maxn];
int st[maxn][maxn][maxn];
//int f[6][3]= {{1,0,0},{0,1,0},{-1,0,0},{0,-1,0},{0,0,1},{0,0,-1}};
int tx[] = {1,-1,0,0,0,0};  
int ty[] = {0,0,1,-1,0,0};  
int tz[] = {0,0,0,0,1,-1};  
int t,T,n,a,b,c,flag;
int abs(int x){
    return x>=0?x:-x;
}
struct Node  
{  
    int x,y,z,step;  
};  
queue<Node >Q;
void bfs(int x,int y,int z) {
    Node p,q;
    if(!Q.empty()) Q.pop(); 
    p.x=x;
    p.y=y;
    p.z=z;
    p.step=0;
    mp[x][y][z]=1;
    Q.push(p);
    while(!Q.empty()) {
        p=Q.front();
        Q.pop();
        for(int i=0; i<6; i++) {
            q=p;
            q.x+=tx[i];  
            q.y+=ty[i];  
            q.z+=tz[i]; 
            if(q.x<0||q.y<0||q.z<0||q.x>=a||q.y>=b||q.z>=c||mp[q.x][q.y][q.z]==1) {
                continue;
            }
            q.step++;
            if(q.x==a-1&&q.y==b-1&&q.z==c-1&&q.step<=t) {
                flag=1;
                t=q.step;
                break;
            }
            mp[q.x][q.y][q.z]=1;
            if(abs(q.x-a+1)+abs(q.y-b+1)+abs(q.z-c+1)+q.step>t+2)//由于行走只能朝6个固定方向,这里是对剩下时间里能否走到出口进行预判,如果走最短路径依然不能再规定时间内到达出口,明显是不行的,当然不加这个判断也能AC,只是比较消耗时间  
                continue;  
            Q.push(q);
        }
        if(flag)break;
    }
}
int main() {
	freopen("1.txt","r",stdin);//读入数据
    freopen("1.out","w",stdout); //输出数据
    scanf("%d",&T);
    while(T--) {
        flag=0;
        memset(mp,0,sizeof(mp));
        scanf("%d%d%d%d",&a,&b,&c,&t);
        for(int i=0; i<a; i++) {
            for(int j=0; j<b; j++) {
                for(int k=0; k<c; k++) {
                    scanf("%d",&mp[i][j][k]);
                }
            }
        }
        memset(st,0,sizeof(st));
    if(a+b+c==3){
            printf("0\n");
            continue;
        }
        bfs(0,0,0);
        if(flag) {
            printf("%d\n",t);
        } else {
            printf("-1\n");
        }
    }
}

网上的标程

#include <stdio.h>  
#include <string.h>  
#include <queue>  
using namespace std;  
const int N = 55;  
  
int map[N][N][N];  
int vis[N][N][N];  
int tx[] = {1,-1,0,0,0,0};  
int ty[] = {0,0,1,-1,0,0};  
int tz[] = {0,0,0,0,1,-1};  
int a,b,c,t,ans;  
  
struct Node  
{  
    int x,y,z,step;  
};  
  
int abs(int x)//绝对值  
{  
    return x<0?-x:x;  
}  
  
int check(int i,int j,int k)//判断是否可行  
{  
    if(i<0 || j<0 || k<0 || i>=a || j>=b || k>=c || map[i][j][k])  
    return 0;  
    return 1;  
}  
  
int bfs(int x,int y,int z)  
{  
    int i;  
    queue<Node> Q;  
    Node p,q;  
    p.x = x;  
    p.y = y;  
    p.z = z;  
    p.step = 0;  
    vis[x][y][z] = 1;  
    Q.push(p);  
    while(!Q.empty())  
    {  
        p = Q.front();  
        Q.pop();  
        if(p.x == a-1 && p.y == b-1 && p.z==c-1 && p.step<=t)  
        return p.step;  
        for(i = 0;i<6;i++)  
        {  
            q = p;  
            q.x+=tx[i];  
            q.y+=ty[i];  
            q.z+=tz[i];  
            if(!vis[q.x][q.y][q.z] && check(q.x,q.y,q.z))  
            {  
                q.step++;  
                vis[q.x][q.y][q.z] = 1;  
                if(abs(q.x-a+1)+abs(q.y-b+1)+abs(q.z-c+1)+q.step>t)//由于行走只能朝6个固定方向,这里是对剩下时间里能否走到出口进行预判,如果走最短路径依然不能再规定时间内到达出口,明显是不行的,当然不加这个判断也能AC,只是比较消耗时间  
                continue;  
                Q.push(q);  
            }  
        }  
    }  
    return -1;  
}  
  
int main()  
{   freopen("1.txt","r",stdin);//读入数据
    freopen("2.out","w",stdout); //输出数据
    int cas;  
    scanf("%d",&cas);  
    while(cas--)  
    {  
        int i,j,k;  
        scanf("%d%d%d%d",&a,&b,&c,&t);  
        memset(map,0,sizeof(map));  
        memset(vis,0,sizeof(vis));  
        for(i = 0;i<a;i++)  
        for(j = 0;j<b;j++)  
        for(k = 0;k<c;k++)  
        scanf("%d",&map[i][j][k]);  
        ans = bfs(0,0,0);  
        printf("%d\n",ans);  
    }  
  
    return 0;  
}  

造数据的程序:

#include<iostream>
#include<cstdlib>
#include<ctime>
#define random(a,b) (rand()%(b-a+1)+a)
using namespace std;
int a,b,c,t,p;
int main()
{
	freopen("1.txt","w",stdout);//输出文件
    srand((unsigned)time(NULL));//数据随机化时间种子
    p=random(1,10);
    printf("%d\n",p);
    for(int q=1;q<=p;q++)
    {
    a=random(1,10);b=random(1,10);c=random(1,10);t=random(1,100);
    printf("%d %d %d %d\n",a,b,c,t);
    for(int i=1;i<=a;i++)
      for(int j=1;j<=b;j++)
         {
         for(int k=1;k<=c;k++)  printf("%d ",random(0,1));
         printf("\n");
         }
    }
    return 0;
}

.bat文件

:loop  //标签
3 //打开造数据的eve
1 //打开1.exe
2 //打开2.exe
fc 1.out 2.out  //比较两个out  
if errorlevel==1 pause  //如果不相等就停止
goto loop //继续循环

结果:





出错误了




最后发现是Q队列没有清空

posted @ 2018-04-01 22:01  The-Pines-of-Star  阅读(321)  评论(0编辑  收藏  举报