18 lines
290 B
Go
18 lines
290 B
Go
package q3461
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func hasSameDigits(s string) bool {
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buf := []byte(s)
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for i := range buf {
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buf[i] = buf[i] - '0'
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}
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for len(buf) > 2 {
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for i := range len(buf) - 1 {
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buf[i] = (buf[i] + buf[i+1]) % 10
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}
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buf = buf[:len(buf)-1]
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}
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return buf[0] == buf[1]
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}
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var _ = hasSameDigits
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