Repeating as many clue values as possible in Killer and Little Killer resulted in this fun puzzle. Hope you enjoy :-)
---
Normal Sudoku rules.
Killer
Digits in cages do not repeat and sum to the small number in the top left corner of the cage.
Little Killer
Clues outside the grid show the sum of the digits along the indicated diagonal. Digits can repeat along this diagonal if allowed by the other rules.
Odd
The cell with the gray circle contains an odd digit.
---
Solution code: row 1 and column 9