Crossword 2

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Across
  1. 3. The library function used to find the last occurrence of a character in a string.
  2. 5. ___ numbers are used in several routines in publickey cryptography.
  3. 7. A class cannot extend ___
Down
  1. 1. Too many recursive calls may result into ___ overflow.
  2. 2. ___ decomposition methods simplify computations,both theoretically & practically.
  3. 4. When you pass an array name as a function argument,you are implicitly passing the array by ___
  4. 6. ___ reads characters from stream into the string.