[中學] 一題競賽
對任意實數a,b,c,
當a>b時,將(a,b,c)調整為(a-b,b,c-b);
當a<b時,將(a,b,c)調整為(a,b-a,(bc-a^2)/b-a);
當a=b時,維持不變;我們稱這樣的過程為一次調整。
若(a,b,c)經過幾次調整後可得到(1,1,k),則k=______.
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