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Language: How many Fibs?
Description Recall the definition of the Fibonacci numbers:
f1 := 1 Given two numbers a and b, calculate how many Fibonacci numbers are in the range [a,b]. Input The input contains several test cases. Each test case consists of two non-negative integer numbers a and b. Input is terminated by a=b=0. Otherwise, a<=b<=10 ^{100}. The numbers a and b are given with no superfluous leading zeros. Output For each test case output on a single line the number of Fibonacci numbers fi with a<=fi<=b. Sample Input 10 100 1234567890 9876543210 0 0 Sample Output 5 4 Source |

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