# the problem -x[1]-x[2]=min, x[1]^2+x[2]^2-1=0,x[1]>=0,x[2]>=0
# written in AMPL by Yu-Ju Kuo and Hans D. Mittelmann, 6/2001
param N:=2;
param NH:=1;
param NG:=2;
var X{1..N}:=-0.4;
minimize obj:-X[1] - X[2];
s.t. hx1: X[1]^2+X[2]^2-1=0;  
s.t. gx2: X[1]>=0;
s.t. gx3: X[2]>=0;