#include #include #include using namespace std;float perimetr(int x1,int y1, int x2, int y2, int x3, int y3){ float a,b,c; a=sqrt(float((x1-x2)*(x1-x2) (y1-y2)*(y1-y2))); b=sqrt(float((x3-x2)*(x3-x2) (y3-y2)*(y3-y2))); c=sqrt(float((x1-x3)*(x1-x3) (y1-y3)*(y1-y3))); if(a>b c || b>a c || c>b a) return 0; return a b c;}int main (){ int X[8]={1,6,3,8,4,1,8,3}; int Y[8]={2,4,1,7,9,3,5,8}; int i,j,k; int imax, jmax, kmax; float pmax=0,p=0; for(i=0;i<8;i ) { for(j=i 1;j<8;j ) { for(k=j 1;k<8;k ) { p=perimetr(X[i],Y[i],X[j],Y[j],X[k],Y[k]); if(pmax
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