bzoj_1033: [ZJOI2008]杀蚂蚁antbuster

只能说恶心啊...

从网上找了一个标程,把所有信息都输出出来,对着调了一下午...

找到了两个错:

1.蚂蚁移动时,并不是只会向信息素最多的地方移动

2.蚂蚁被卡在(n,m) 时,忘了拿蛋糕了...

 

#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <iostream>
#include <cmath>
#include <algorithm>
#define ll long long
#define dd double
#define ld long double
#define mem(a,b) memset(a,b,sizeof(a))
using namespace std;
const int S=26;
const int TTT=200006;
const int N=12;
const dd esp=1e-10;
const int INF=0x7fffffff;
inline dd dis(int x3,int y3,int x4,int y4)
{
    return sqrt( (y3-y4)*(y3-y4)+(x3-x4)*(x3-x4) );
}
struct Ant
{
    int x,y,age,lev;
    ll blood,bloodlimit;
    int lasx,lasy;
    bool cakeif;
    Ant(){}
    inline Ant(int xx,int yy,int agee,int levv,ll bloodd,int cakeiff)
    {
        x=xx;y=yy;age=agee;lev=levv;blood=bloodd;cakeif=cakeiff;
        bloodlimit=bloodd;
        lasx=-1;lasy=-1;
    }
    void out()
    {
        printf("%d %d %d %d %d %d\n",x,y,age,lev,blood,cakeif);
    }
};

int n,m;
int s,d,r;
int x[S],y[S];
int T;
int ban[N][N];

inline void Init()
{
    scanf("%d%d",&n,&m);
    scanf("%d%d%d",&s,&d,&r);
    for(int i=1;i<=s;++i)
    {
        scanf("%d%d",&x[i],&y[i]);
        ban[x[i]][y[i]]=1;
    }
    scanf("%d",&T);
}

int xin[N][N];
Ant ji[N];int he;
int cnt;
int bx[10]={0,1,0,-1};
int by[10]={1,0,-1,0};
bool cake;

inline int callev(int ccc)
{
    return (ccc-1)/6+1;
}

inline ll calblood(int ccc)
{
    return (ll)(4*pow(1.1,callev(ccc)));
}

inline void leftxin()
{
    for(int i=1;i<=he;++i)
        xin[ji[i].x][ji[i].y]+=(ji[i].cakeif?5:2);
}

inline void walk(int order,int di)
{
    ji[order].lasx=ji[order].x;ji[order].lasy=ji[order].y;
    ji[order].x+=bx[di];ji[order].y+=by[di];
    ban[ji[order].lasx][ji[order].lasy]=0;
    ban[ji[order].x][ji[order].y]=1;
    if(ji[order].x==n&&ji[order].y==m&&cake)
        ji[order].cakeif=1,cake=0,ji[order].blood=min(ji[order].bloodlimit,ji[order].blood+ji[order].bloodlimit/2);
}
void out1(int order)
{
    printf("order=%d age=%d x=%d y=%d\n",order,ji[order].age,ji[order].x,ji[order].y);
}

inline void move(int order)
{
    int mn=-1,tx,ty;
    for(int i=0;i<4;++i)
    {
        tx=ji[order].x+bx[i];ty=ji[order].y+by[i];
        if(tx<0||tx>n||ty<0||ty>m||ban[tx][ty]||(tx==ji[order].lasx&&ty==ji[order].lasy))
            continue;
        if(mn<xin[tx][ty])
            mn=xin[tx][ty];
    }
    if(mn==-1)
    {
        ji[order].lasx=ji[order].lasy=-1;
        if(ji[order].x==n&&ji[order].y==m&&cake)
            ji[order].cakeif=1,cake=0,ji[order].blood=min(ji[order].bloodlimit,ji[order].blood+ji[order].bloodlimit/2);
        return ;
    }
    int di;
    for(int i=0;i<4;++i)
    {
        tx=ji[order].x+bx[i];ty=ji[order].y+by[i];
        if(tx<0||tx>n||ty<0||ty>m||ban[tx][ty]||(tx==ji[order].lasx&&ty==ji[order].lasy))
            continue;
        if(mn==xin[tx][ty])
        {
            di=i;
            break;
        }
    }
    if((ji[order].age+1)%5==0)
    {
        while(1)
        {
            di=(di+3)%4;
            tx=ji[order].x+bx[di];ty=ji[order].y+by[di];
            if(tx<0||tx>n||ty<0||ty>m||ban[tx][ty]||(tx==ji[order].lasx&&ty==ji[order].lasy))
                continue;
            break;
        }
    }
    walk(order,di);
}

inline void addage()
{
    for(int i=1;i<=he;++i)
        ++ji[i].age;
}

inline void reducexin()
{
    for(int i=0;i<=n;++i)
        for(int j=0;j<=m;++j)
            if(xin[i][j])
                --xin[i][j];
}

inline void A(int order)
{
    ji[order].blood-=d;
}

inline void checkdie()
{
    int ttt=0;
    for(int i=1;i<=he;++i)
    {
        if(ji[i].blood>=0)
            ji[++ttt]=ji[i];
        else
        {
            ban[ji[i].x][ji[i].y]=0;
            if(ji[i].cakeif)
                cake=1;
        }
    }
    he=ttt;
}

inline int is_in(int ta,int aid,int order)
{
    int lx=x[ta],ly=y[ta],rx=ji[aid].x,ry=ji[aid].y;
    if(lx>rx)
        swap(lx,rx),swap(ly,ry);
    if(ji[order].x<lx||ji[order].x>rx)
        return 0;
    if(ji[order].y<min(ly,ry)||ji[order].y>max(ly,ry))
        return 0;
    dd A=0,B=0,C=0;
    if(lx==rx)
        A=1,B=0,C=-lx;
    else
        A=(dd)(ry-ly)/(rx-lx),B=-1.0,C=(dd)ly-(dd)lx*A;
    if( fabs(A*ji[order].x+B*ji[order].y+C)/sqrt(A*A+B*B)<0.5+esp )
        return 1;
    return 0;
}

inline void attack(int order)
{
    if(he==0)
        return ;
    int aid=-1,age=0;
    dd distance=INF,dtemp;
    for(int i=1;i<=he;++i)
    {
        dtemp=dis(x[order],y[order],ji[i].x,ji[i].y);
        if(dtemp>r)
            continue;
        if( fabs(dtemp-distance)<esp )
        {
            if(age<ji[i].age)
            {
                aid=i;
                age=ji[i].age;
            }
        }
        else
            if( distance+esp>dtemp )
            {
                aid=i;
                distance=dtemp;
                age=ji[i].age;
            }
    }
    for(int i=1;i<=he;++i)
    {
        dtemp=dis(x[order],y[order],ji[i].x,ji[i].y);
        if(dtemp>r)
            continue;
        if(ji[i].cakeif)
            aid=i;
    }
    if(aid==-1)
        return ;
    A(aid);
    for(int i=1;i<=he;++i)
    {
        if(i==aid||!is_in(order,aid,i))
            continue;
        A(i);
    }
}

inline int check()
{
    for(int i=1;i<=he;++i)
        if(ji[i].x==0&&ji[i].y==0&&ji[i].cakeif)
            return 1;
    return 0;
}

void out(int x)
{
    printf("Game over after %d seconds\n",x);
    printf("%d\n",he);
    for(int i=1;i<=he;++i)
        printf("%d %d %lld %d %d\n",ji[i].age,ji[i].lev,ji[i].blood,ji[i].x,ji[i].y);
}

void outend()
{
    printf("The game is going on\n");
    printf("%d\n",he);
    for(int i=1;i<=he;++i)
        printf("%d %d %lld %d %d\n",ji[i].age,ji[i].lev,ji[i].blood,ji[i].x,ji[i].y);
}

inline void work()
{
    cake=1;cnt=0;mem(xin,0);
    for(int i=1;i<=T;++i)
    {
        if(he<6&&!ban[0][0])
        {
            ++cnt;
            ji[++he]=Ant(0,0,0,callev(cnt),calblood(cnt),0);
            ban[0][0]=1;
        }
        leftxin();
        for(int j=1;j<=he;++j)
            move(j);
        for(int j=1;j<=s;++j)
            attack(j);
        checkdie();
        if(check())
        {
            out(i);
            return ;
        }
        addage();
        reducexin();
    }
    outend();
}
int main(){

    //freopen("antbuster_ex.in","r",stdin);
    //freopen("antbuster_ex.out","w",stdout);

    //freopen("in.in","r",stdin);
    //freopen("out.out","w",stdout);

    Init();
    work();
}
删注释

 

#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <iostream>
#include <cmath>
#include <algorithm>
#define ll long long
#define dd double
#define ld long double
#define mem(a,b) memset(a,b,sizeof(a))
using namespace std;
const int S=26;
const int TTT=200006;
const int N=12;
const dd esp=1e-10;
const int INF=0x7fffffff;
inline dd dis(int x3,int y3,int x4,int y4)
{
    return sqrt( (y3-y4)*(y3-y4)+(x3-x4)*(x3-x4) );
}
struct Ant
{
    int x,y,age,lev;
    ll blood,bloodlimit;
    int lasx,lasy;
    bool cakeif;
    Ant(){}
    inline Ant(int xx,int yy,int agee,int levv,ll bloodd,int cakeiff)
    {
        x=xx;y=yy;age=agee;lev=levv;blood=bloodd;cakeif=cakeiff;
        bloodlimit=bloodd;
        lasx=-1;lasy=-1;
    }
    void out()
    {
        printf("%d %d %d %d %d %d\n",x,y,age,lev,blood,cakeif);
    }
};

int n,m;
int s,d,r;
int x[S],y[S];
int T;
int ban[N][N];

inline void Init()
{
    scanf("%d%d",&n,&m);
    scanf("%d%d%d",&s,&d,&r);
    for(int i=1;i<=s;++i)
    {
        scanf("%d%d",&x[i],&y[i]);
        ban[x[i]][y[i]]=1;
        //printf("x[i]=%d y[i]=%d\n",x[i],y[i]);
    }
    scanf("%d",&T);
}

int xin[N][N];
Ant ji[N];int he;
int cnt;
int bx[10]={0,1,0,-1};
int by[10]={1,0,-1,0};
bool cake;

inline int callev(int ccc)
{
    return (ccc-1)/6+1;
}

inline ll calblood(int ccc)
{
    return (ll)(4*pow(1.1,callev(ccc)));
}

inline void leftxin()
{
    for(int i=1;i<=he;++i)
        xin[ji[i].x][ji[i].y]+=(ji[i].cakeif?5:2);
}

inline void walk(int order,int di)
{
    ji[order].lasx=ji[order].x;ji[order].lasy=ji[order].y;
    ji[order].x+=bx[di];ji[order].y+=by[di];
    ban[ji[order].lasx][ji[order].lasy]=0;
    ban[ji[order].x][ji[order].y]=1;
    if(ji[order].x==n&&ji[order].y==m&&cake)
        ji[order].cakeif=1,cake=0,ji[order].blood=min(ji[order].bloodlimit,ji[order].blood+ji[order].bloodlimit/2);
}
//printf("%d %d %d %d %d %d\n",x,y,age,lev,blood,cakeif);
void out1(int order)
{
    printf("order=%d age=%d x=%d y=%d\n",order,ji[order].age,ji[order].x,ji[order].y);
}

inline void move(int order)//不能只是保存信息素最多的方向,其他少的也可以走...
{
    int mn=-1,tx,ty;
    for(int i=0;i<4;++i)
    {
        tx=ji[order].x+bx[i];ty=ji[order].y+by[i];
        if(tx<0||tx>n||ty<0||ty>m||ban[tx][ty]||(tx==ji[order].lasx&&ty==ji[order].lasy))
            continue;
        if(mn<xin[tx][ty])
            mn=xin[tx][ty];
    }
    if(mn==-1)// 忘拿蛋糕了....
    {
        ji[order].lasx=ji[order].lasy=-1;
        if(ji[order].x==n&&ji[order].y==m&&cake)
            ji[order].cakeif=1,cake=0,ji[order].blood=min(ji[order].bloodlimit,ji[order].blood+ji[order].bloodlimit/2);
        return ;
    }
    int di;
    for(int i=0;i<4;++i)
    {
        tx=ji[order].x+bx[i];ty=ji[order].y+by[i];
        if(tx<0||tx>n||ty<0||ty>m||ban[tx][ty]||(tx==ji[order].lasx&&ty==ji[order].lasy))
            continue;
        if(mn==xin[tx][ty])
        {
            di=i;
            break;
        }
    }
    if((ji[order].age+1)%5==0)
    {
        while(1)
        {
            di=(di+3)%4;
            tx=ji[order].x+bx[di];ty=ji[order].y+by[di];
            if(tx<0||tx>n||ty<0||ty>m||ban[tx][ty]||(tx==ji[order].lasx&&ty==ji[order].lasy))
                continue;
            break;
        }
    }
    walk(order,di);
}

inline void addage()
{
    for(int i=1;i<=he;++i)
        ++ji[i].age;
}

inline void reducexin()
{
    for(int i=0;i<=n;++i)
        for(int j=0;j<=m;++j)
            if(xin[i][j])
                --xin[i][j];
}

inline void A(int order)
{
    ji[order].blood-=d;
}

inline void checkdie()
{
    int ttt=0;
    for(int i=1;i<=he;++i)
    {
        if(ji[i].blood>=0)
            ji[++ttt]=ji[i];
        else
        {
            ban[ji[i].x][ji[i].y]=0;
            if(ji[i].cakeif)
                cake=1;
        }
    }
    he=ttt;
}

inline int is_in(int ta,int aid,int order)
{
    int lx=x[ta],ly=y[ta],rx=ji[aid].x,ry=ji[aid].y;
    //printf("lx=%d ly=%d rx=%d ry=%d ",lx,ly,rx,ry);
    if(lx>rx)
        swap(lx,rx),swap(ly,ry);
    if(ji[order].x<lx||ji[order].x>rx)
        return 0;
    if(ji[order].y<min(ly,ry)||ji[order].y>max(ly,ry))
        return 0;
    dd A=0,B=0,C=0;
    if(lx==rx)
        A=1,B=0,C=-lx;
    else
        A=(dd)(ry-ly)/(rx-lx),B=-1.0,C=(dd)ly-(dd)lx*A;
    //printf("lx=%d ly=%d rx=%d ry=%d aid=%d A=%lf B=%lf C=%lf\n",lx,ly,rx,ry,aid,A,B,C);
    if( fabs(A*ji[order].x+B*ji[order].y+C)/sqrt(A*A+B*B)<0.5+esp )
        return 1;
    return 0;
}

inline void attack(int order)
{
    if(he==0)
        return ;
    int aid=-1,age=0;
    dd distance=INF,dtemp;
    for(int i=1;i<=he;++i)
    {
        dtemp=dis(x[order],y[order],ji[i].x,ji[i].y);
        if(dtemp>r)
            continue;
        if( fabs(dtemp-distance)<esp )
        {
            if(age<ji[i].age)
            {
                aid=i;
                age=ji[i].age;
            }
        }
        else
            if( distance+esp>dtemp )
            {
                aid=i;
                distance=dtemp;
                age=ji[i].age;
            }
    }
    for(int i=1;i<=he;++i)
    {
        dtemp=dis(x[order],y[order],ji[i].x,ji[i].y);
        if(dtemp>r)
            continue;
        if(ji[i].cakeif)
        {
            //printf("now????\n");
            aid=i;
        }
    }
    if(aid==-1)
        return ;
    //printf("tax=%d tay=%d aidx=%d aidy=%d\n",x[order],y[order],ji[aid].x,ji[aid].y);
    A(aid);
    for(int i=1;i<=he;++i)
    {
        if(i==aid||!is_in(order,aid,i))
            continue;
        //printf("tax=%d tay=%d aid=%d i=%d 好疼啊\n",x[order],y[order],aid,i);
        A(i);
    }
}

inline int check()
{
    for(int i=1;i<=he;++i)
        if(ji[i].x==0&&ji[i].y==0&&ji[i].cakeif)
            return 1;
    return 0;
}

void out(int x)
{
    printf("Game over after %d seconds\n",x);
    printf("%d\n",he);
    for(int i=1;i<=he;++i)
        printf("%d %d %lld %d %d\n",ji[i].age,ji[i].lev,ji[i].blood,ji[i].x,ji[i].y);
}

void outend()
{
    printf("The game is going on\n");
    printf("%d\n",he);
    for(int i=1;i<=he;++i)
        printf("%d %d %lld %d %d\n",ji[i].age,ji[i].lev,ji[i].blood,ji[i].x,ji[i].y);
}

//bool tmpp[N][N];
void get_now()
{
    printf("\n");
    for(int i=0;i<=n;++i)
    {
        for(int j=0;j<=m;++j)
            printf("%d ",ban[i][j]);
        printf("\n");
    }
    printf("\n");
    for(int i=1;i<=he;++i)
        printf("i=%d if=%d lasx=%d lasy=%d x=%d y=%d age=%d lev=%d blood=%lld\n",i,ji[i].cakeif,ji[i].lasx,ji[i].lasy,ji[i].x,ji[i].y,ji[i].age,ji[i].lev,ji[i].blood);

    /*for(int i=1;i<=he;++i)
        printf("blood=%lld\n",ji[i].blood);*/

}

inline void work()
{
    cake=1;cnt=0;mem(xin,0);
    for(int i=1;i<=T;++i)
    {
        //printf("-----------now=%d\n",i);
        
        if(he<6&&!ban[0][0])
        {
            ++cnt;
            ji[++he]=Ant(0,0,0,callev(cnt),calblood(cnt),0);
            //printf("lev=%d blood=%lld cnt=%d\n",ji[he].lev,ji[he].blood,cnt);
            //printf("cnt=%d\n",cnt);
            //ji[he].out();
            ban[0][0]=1;
        }//get_now();
        leftxin();
        for(int j=1;j<=he;++j)
            move(j);
        /*printf("------xinxi------\n");
        for(int l=0;l<=n;++l)
        {
            for(int j=0;j<=m;++j)
                printf("%d ",xin[l][j]);
            printf("\n");
        }
        printf("\n");*/
        //get_now();
        for(int j=1;j<=s;++j)
            attack(j);
        checkdie();
        if(check())
        {
            out(i);
            return ;
        }
        addage();
        reducexin();

        //get_now();

        //for(int i=1;i<=he;++i)
        //    ji[i].out();
        //printf("he=%d\n",he);
        
    }
    outend();
}
int main(){

    //freopen("antbuster_ex.in","r",stdin);
    //freopen("antbuster_ex.out","w",stdout);

    //freopen("in.in","r",stdin);
    //freopen("out.out","w",stdout);

    Init();
    work();
}
没删注释

 

posted @ 2017-10-10 17:05  A_LEAF  阅读(127)  评论(0编辑  收藏  举报