Collision -Time List and partner list Initializing CTlist-COLTIM(: From the initial condition. Calculate for each particle its collision time with all the other particles the minimum collision time into CoLTIM( (if particle/wIl Find out the minimum of the collision times of particle i and pi not collide with any other particle, put a very large value, e. g TIMBIG, into COLTIM(I Repeat this for all the particles Partner list- PARTNR(N: PaRTNR contains the identity(number of the particle)of the collision partner of particle iCollision-Time List and Partner list Initializing CT list - COLTIM(N): From the initial condition, Calculate for each particle its collision time with all the other particles. Find out the minimum of the collision times of particle I and put the minimum collision time into COLTIM(I) (if particle I will not collide with any other particle, put a very large value, e.g., TIMBIG, into COLTIM(I)). Repeat this for all the particles. Partner list - PARTNR(N): PARTNR(I) contains the identity (number of the particle) of the collision partner of particle I