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17 lines
253 B
Go
17 lines
253 B
Go
package main
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func gcdOfStrings(str1 string, str2 string) string {
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gcd := func(x, y int) int {
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for y != 0 {
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x, y = y, x%y
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}
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return x
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}
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if str1+str2 != str2+str1 {
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return ""
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}
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length := gcd(len(str1), len(str2))
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return str1[:length]
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}
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