Find another sketch 
for (int jj; jj<sizeof(leds)/sizeof(int);jj++){
It would be a lot easier of you don't use sizeof(int) in there but sizeof(leds[0]. If you decide to make the leds array an array of bytes instead of integers, you don't have to adjust the for-loop.
And as pointed out, jj is not initialised. So the complete line would be
for (int jj = 0; jj<sizeof(leds)/sizeof(leds[0]);jj++){
No, it will be 2, the number of bytes; not the number of bits.
PS
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