Use temporary variables to compute index.
Use temporary variables to compute index.

ktnyt/chainer,chainer/chainer,kashif/chainer,wkentaro/chainer,jnishi/chainer,wkentaro/chainer,wkentaro/chainer,keisuke-umezawa/chainer,hvy/chainer,chainer/chainer,cupy/cupy,keisuke-umezawa/chainer,ktnyt/chainer,keisuke-umezawa/chainer,rezoo/chainer,niboshi/chainer,hvy/chainer,jnishi/chainer,aonotas/chainer,okuta/chainer,jnishi/chainer,niboshi/chainer,niboshi/chainer,okuta/chainer,chainer/chainer,chainer/chainer,pfnet/chainer,ronekko/chainer,anaruse/chainer,okuta/chainer,keisuke-umezawa/chainer,hvy/chainer,kiyukuta/chainer,jnishi/chainer,cupy/cupy,wkentaro/chainer,cupy/cupy,ysekky/chainer,ktnyt/chainer,delta2323/chainer,okuta/chainer,cupy/cupy,tkerola/chainer,ktnyt/chainer,hvy/chainer,niboshi/chainer