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rachelmyers/strstr

Created December 6, 2010 07:18
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white. boards. suck.
Raw
strstr
def substring(haystack, needle)
i = 0
while i <= haystack.length
if haystack[i,(needle.length)] == needle
return i
else
i += 1
end
if i == haystack.length
return nil
end
end
end
puts substring("stupid", "smart")
puts substring("stupid", "stu")
puts substring("stupid", "pid")
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