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28 lines
736 B
28 lines
736 B
package cap3
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// Ex9t1 整数拆解为2的幂之和(返回整数的二进制bit取值情况，bit的idx对应相应的幂)
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func Ex9t1(num int) []bool {
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// 传进来的是int，一般是32bit，这里就用64来存bit，肯定够了
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bits := make([]bool, 0, 64)
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for i := 0; num != 0; i++ {
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bits = append(bits, num%2 == 1)
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num /= 2
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}
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return bits
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}
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// Ex9t2 整数拆解为2的幂之和(返回幂取值)
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func Ex9t2(num int) []uint8 {
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// 传进来的是int，一般是32bit，这里就用64来存bit，肯定够了
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bits := make([]uint8, 0, 64)
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for i := uint8(0); num != 0; i++ {
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if num%2 == 1 {
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bits = append(bits, i)
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}
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num /= 2
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}
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return bits
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}
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