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https://github.com/Kiritow/OJ-Problems-Source.git
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57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
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#include<iostream>
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#include<cstdio>
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#include<cstdlib>
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#include<cstring>
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#include<cmath>
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#include<algorithm>
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#include<vector>
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#include<queue>
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#define inf 0x7fffffff
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using namespace std;
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typedef long long LL;
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const LL maxn=10000+10;
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LL n,m;
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struct Point
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{
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LL x,y,z;
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Point (LL x=0,LL y=0,LL z=0):x(x),y(y),z(z){}
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}a,b,c,d;
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typedef Point Vector;
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double Dot(Vector A,Vector B) {return A.x*B.x + A.y*B.y; }
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double Length(Vector A) {return sqrt(Dot(A,A)); }
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double angle(Vector A,Vector B) {return acos(Dot(A,B)/Length(A)/Length(B)); }
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LL dis(Point A,Point B)
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{
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LL xx=(A.x-B.x)*(A.x-B.x);
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LL yy=(A.y-B.y)*(A.y-B.y);
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LL zz=(A.z-B.z)*(A.z-B.z);
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return xx+yy+zz;
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}
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int main()
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{
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int t,ncase=1;
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scanf("%d",&t);
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while (t--)
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{
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scanf("%I64d%I64d%I64d%I64d%I64d%I64d%I64d%I64d%I64d%I64d%I64d%I64d",
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&a.x,&a.y,&a.z,&b.x,&b.y,&b.z,&c.x,&c.y,&c.z,&d.x,&d.y,&d.z);
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int flag=0;
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LL len,len2,len3;
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len=dis(a,b) ;len2=dis(a,c) ;len3=dis(a,d) ;
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if ((len==len2&&len3==len+len2)||(len==len3&&len2==len+len3)||(len2==len3&&len==len2+len3))
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flag++;
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len=dis(b,a) ;len2=dis(b,c) ;len3=dis(b,d) ;
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if ((len==len2&&len3==len+len2)||(len==len3&&len2==len+len3)||(len2==len3&&len==len2+len3))
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flag++;
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len=dis(c,a) ;len2=dis(c,b) ;len3=dis(c,d) ;
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if ((len==len2&&len3==len+len2)||(len==len3&&len2==len+len3)||(len2==len3&&len==len2+len3))
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flag++;
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len=dis(d,a) ;len2=dis(d,b) ;len3=dis(d,c) ;
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if ((len==len2&&len3==len+len2)||(len==len3&&len2==len+len3)||(len2==len3&&len==len2+len3))
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flag++;
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if (flag==4) printf("Case #%d: Yes\n",ncase++);
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else printf("Case #%d: No\n",ncase++);
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}
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return 0;
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}
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