Let a circle \( \mathrm{C}:(x-h)^{2}+(y-k)^{2}=r^{2}, k0 \), touch the \( x \)-axis at \( (1,0) ...

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Let a circle \( \mathrm{C}:(x-h)^{2}+(y-k)^{2}=r^{2}, k0 \), touch the \( x \)-axis at \( (1,0) \). If the line \( x+y=0 \) intersects the circle \( C \) at \( P \) and \( Q \) such that the length of the chord \( P Q \) is 2 , then the value of \( h+k+r \) is equal to
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