delete pics to save space

2.1447.cpp

@@ -0,0 +1,33 @@
+#include<cstdio>
+#include<cmath>
+struct Point
+{ double x, y; };
+Point A,B,C,I;
+inline double get_dis(Point p1,Point p2)
+{ return sqrt((p1.x-p2.x)*(p1.x-p2.x)+(p1.y-p2.y)*(p1.y-p2.y)); }
+double a,b,c,s,r,IA,IB,IC,r1,r2,r3;
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif
+    while(scanf("%lf%lf%lf%lf%lf%lf",&A.x,&A.y,&B.x,&B.y,&C.x,&C.y)==6)
+	{
+        if(A.x==0&&A.y==0&&B.x==0&&B.y==0&&C.x==0&&C.y==0) break;
+        a=get_dis(B,C);
+        b=get_dis(A,C);
+        c=get_dis(A,B);
+        s=(a+b+c)/2;
+        I.x=(a*A.x+b*B.x+c*C.x)/(a+b+c);
+        I.y=(a*A.y+b*B.y+c*C.y)/(a+b+c);
+        r=sqrt((s-a)*(s-b)*(s-c)/s);
+        IA=get_dis(A,I);
+        IB=get_dis(B,I);
+        IC=get_dis(C,I);
+        r1=r/(2*(s-a))*(s-r+IA-IB-IC);
+        r2=r/(2*(s-b))*(s-r+IB-IA-IC);
+        r3=r/(2*(s-c))*(s-r+IC-IA-IB);
+        printf("%.6lf %.6lf %.6lf\n",r1,r2,r3);
+    }
+    return 0;
+}