187 lines
3.9 KiB
Plaintext
187 lines
3.9 KiB
Plaintext
package mathUtil
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import (
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"sort"
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)
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// 判断传入的byte型数组是否连续
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func IsContinuous_byte(list []byte) bool {
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if len(list) == 0 || len(list) == 1 {
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return true
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}
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list_int64 := make([]int64, len(list), len(list))
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for i, v := range list {
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list_int64[i] = int64(v)
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}
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return IsContinuous_int64(list_int64)
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}
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// 判断传入的int型数组是否连续
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func IsContinuous_int(list []int) bool {
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if len(list) == 0 || len(list) == 1 {
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return true
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}
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list_int64 := make([]int64, len(list), len(list))
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for i, v := range list {
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list_int64[i] = int64(v)
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}
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return IsContinuous_int64(list_int64)
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}
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// 判断传入的int型数组是否连续
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func IsContinuous_int32(list []int32) bool {
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if len(list) == 0 || len(list) == 1 {
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return true
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}
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list_int64 := make([]int64, len(list), len(list))
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for i, v := range list {
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list_int64[i] = int64(v)
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}
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return IsContinuous_int64(list_int64)
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}
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// 判断传入的int型数组是否连续
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func IsContinuous_int64(list []int64) bool {
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if len(list) == 0 || len(list) == 1 {
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return true
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}
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if int64(len(list)) != list[len(list)-1]-list[0]+1 {
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return false
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}
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for i := 0; i < len(list)-1; i++ {
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if list[i]+1 != list[i+1] {
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return false
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}
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}
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return true
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}
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// 判断区间是否连续
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func IsContinuous_Region(list []*IntRegion) bool {
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if len(list) == 0 || len(list) == 1 {
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return true
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}
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sort.Slice(list, func(i, j int) bool { return list[i].Lower < list[j].Lower })
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for i := 0; i < len(list)-1; i++ {
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if list[i].IsSorted() == false || list[i+1].IsSorted() == false {
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return false
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}
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if list[i].Upper+1 != list[i+1].Lower {
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return false
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}
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}
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return true
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}
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// 判断传入的概率是否全覆盖
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func IsOddFullConvered(list []*IntRegion, min, max int) bool {
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if len(list) == 0 {
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return false
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}
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if list[0].Lower != min || list[len(list)-1].Upper != max {
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return false
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}
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sort.Slice(list, func(i, j int) bool { return list[i].Lower < list[j].Lower })
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for i := 0; i < len(list)-1; i++ {
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if list[i].IsSorted() == false || list[i+1].IsSorted() == false {
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return false
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}
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if list[i].Upper+1 != list[i+1].Lower {
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return false
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}
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}
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return true
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}
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func IsDistinct_byte(list []byte) (result bool) {
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if len(list) == 0 || len(list) == 1 {
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result = true
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return
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}
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list_int64 := make([]int64, len(list), len(list))
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for i, v := range list {
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list_int64[i] = int64(v)
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}
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return IsDistinct_int64(list_int64)
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}
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func IsDistinct_int(list []int) (result bool) {
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if len(list) == 0 || len(list) == 1 {
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result = true
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return
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}
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list_int64 := make([]int64, len(list), len(list))
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for i, v := range list {
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list_int64[i] = int64(v)
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}
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return IsDistinct_int64(list_int64)
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}
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func IsDistinct_int32(list []int32) (result bool) {
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if len(list) == 0 || len(list) == 1 {
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result = true
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return
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}
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list_int64 := make([]int64, len(list), len(list))
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for i, v := range list {
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list_int64[i] = int64(v)
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}
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return IsDistinct_int64(list_int64)
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}
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// 判断int64数组是否内容唯一
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func IsDistinct_int64(list []int64) (result bool) {
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if len(list) == 0 || len(list) == 1 {
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result = true
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return
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}
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sort.Slice(list, func(i, j int) bool { return list[i] < list[j] })
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for i := 0; i < len(list)-1; i++ {
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if list[i] == list[i+1] {
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result = false
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return
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}
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}
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result = true
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return
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}
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//// 将int转成uint类型(因goutil指定go版本过低，不支持泛型，未实际加入；要使用的人取消注释，并指定允许泛型的go版本)
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//// 应用场景：atomic.AddUint64 想减1时
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////
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//// x := uint64(1000)
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//// y := int64(-1)
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//// atomic.AddUint64(&x, intToUint[int64, uint64](y))
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//func intToUint[T1 int8 | int16 | int32 | int64 | int, T2 uint8 | uint16 | uint32 | uint64 | uint](x T1) T2 {
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// // 写到函数内，两种方式都可以；若直接使用，只能使用^T2(-x - 1)；若使用T2(x)方式，x为负值时转为uint类语法检查无法通过
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// return ^T2(-x - 1)
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// // return T2(x)
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//}
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