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33 lines
430 B
33 lines
430 B
package solutions |
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func rec(a, b, cnt int) int { |
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if a > b { |
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return -1 |
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} |
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if a == b { |
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// fmt.Printf("%d\n", cnt) |
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return cnt |
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} |
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if rec(a*2, b, cnt+1) != -1 { |
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return rec(a*2, b, cnt+1) |
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} |
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if rec(a*3, b, cnt+1) != -1 { |
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return rec(a*3, b, cnt+1) |
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} |
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return -1 |
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} |
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func Fib(n int) int { |
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if n <= 0 { |
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return 0 |
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} |
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t1 := 0 |
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t2 := 1 |
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for i := 2; i <= n; i++ { |
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t1 = t1 + t2 |
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tmp := t1 |
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t1 = t2 |
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t2 = tmp |
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} |
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return t2 |
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}
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