开$long\ long$救星了吧
by star_magic_young @ 2018-09-02 17:41:34
@[star_magic_young](/space/show?uid=38372) 大佬
发错代码了
这个才是
```cpp
#include<bits/stdc++.h>
using namespace std;
const int maxn=1000+5;
int t,n,h,r,sign;
bool mark[maxn];
unsigned long long judgedx,judgedy;
struct cheese
{
int x,y,z;
}c[maxn];
bool cmp(cheese x,cheese y)
{
return x.z<y.z;
}
bool judge(int a1,int b1,int c1,int a2,int b2,int c2)
{
judgedx=(a1-a2)*(a1-a2)+(b1-b2)*(b1-b2)+(c1-c2)*(c1-c2);
judgedy=4*r*r;
if(judgedx<=judgedy)
return 1;
return 0;
}
void dfs(int m)
{
if(c[m].z+r>=h)
{
sign=1;
return;
}
for(int i=1;i<=n;i++)
{
if(mark[i]==1)
continue;
if(judge(c[m].x,c[m].y,c[m].z,c[i].x,c[i].y,c[i].z)==1)
{
mark[i]=1;
dfs(i);
}
}
}
void work()
{
sort(c,c,cmp);
for(int i=1;i<=n;i++)
{
if(c[i].z-r<=0)
{
mark[i]=1;
dfs(i);
mark[i]=0;
if(sign==1)
{
printf("Yes\n");
return;
}
}
}
printf("No\n");
}
int main()
{
scanf("%d",&t);
for(int i=1;i<=t;i++)
{
sign=0;
memset(mark,0,sizeof(mark));
scanf("%d%d%d",&n,&h,&r);
for(int j=1;j<=n;j++)
{
scanf("%d%d%d",&c[j].x,&c[j].y,&c[j].z);
}
work();
}
return 0;
}
```
by DriverBen @ 2018-09-02 17:43:29
@[Driver笨](/space/show?uid=116303) 呃，你需要把所有都改成long long,不然精度会挂
by taoran @ 2018-09-02 17:52:27
```
// luogu-judger-enable-o2
#include<bits/stdc++.h>
#define LL long long
using namespace std;
const int maxn=1000+5;
long long t,n,h,r,sign;
bool mark[maxn];
unsigned long long judgedx,judgedy;
struct cheese
{
long long x,y,z;
}c[maxn];
bool cmp(cheese x,cheese y)
{
return x.z<y.z;
}
bool judge(long long a1,long long b1,long long c1,long long a2,LL b2,LL c2)
{
judgedx=(a1-a2)*(a1-a2)+(b1-b2)*(b1-b2)+(c1-c2)*(c1-c2);
judgedy=4LL*r*r;
if(judgedx<=judgedy)
return 1;
return 0;
}
void dfs(int m)
{
if(c[m].z+r>=h)
{
sign=1;
return;
}
for(int i=1;i<=n;i++)
{
if(mark[i]==1)
continue;
if(judge(c[m].x,c[m].y,c[m].z,c[i].x,c[i].y,c[i].z)==1)
{
mark[i]=1;
dfs(i);
}
}
}
void work()
{
sort(c,c,cmp);
for(int i=1;i<=n;i++)
{
if(c[i].z-r<=0)
{
mark[i]=1;
dfs(i);
mark[i]=0;
if(sign==1)
{
printf("Yes\n");
return;
}
}
}
printf("No\n");
}
int main()
{
scanf("%d",&t);
for(int i=1;i<=t;i++)
{
sign=0;
memset(mark,0,sizeof(mark));
scanf("%lld%lld%lld",&n,&h,&r);
for(int j=1;j<=n;j++)
{
scanf("%lld%lld%lld",&c[j].x,&c[j].y,&c[j].z);
}
work();
}
return 0;
}
```@[Driver笨](/space/show?uid=116303)
by taoran @ 2018-09-02 17:52:47
就是虽然judgedx是long long但是默认几个int乘在一起是int所以还是爆int了
by taoran @ 2018-09-02 17:54:17
@[taoran](/space/show?uid=39223) 谢谢大佬
by DriverBen @ 2018-09-04 16:11:07