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TheAlgorithms/C++: sorting/tim_sort.cpp Source File

11void

insertionSort(

int

arr[],

int

left,

int

right) {

12 for

(

int

i = left + 1; i <= right; i++) {

13 const int

temp = arr[i];

15 while

(j >= left && arr[j] > temp) {

24void merge

(

int

arr[],

int

l,

int

m,

int

r) {

26 const int

len1 = m -

l

+ 1, len2 = r - m;

27 int

*left =

new int

[len1], *right =

new int

[len2];

28 for

(

int

i = 0; i < len1; i++) left[i] = arr[l + i];

29 for

(

int

i = 0; i < len2; i++) right[i] = arr[m + 1 + i];

36 while

(i < len1 && j < len2) {

37 if

(left[i] <= right[j]) {

65void

timSort(

int

arr[],

int

n) {

67 for

(

int

i = 0; i < n; i += RUN)

68

insertionSort(arr, i, std::min((i + 31), (n - 1)));

72 for

(

int

size = RUN; size < n; size = 2 * size) {

76 for

(

int

left = 0; left < n; left += 2 * size) {

79 const int

mid = std::min((left + size - 1), (n - 1));

80 const int

right = std::min((left + 2 * size - 1), (n - 1));

83 merge

(arr, left, mid, right);

90 for

(

int

i = 0; i < n; i++) printf(

"%d "

, arr[i]);

91

std::cout << std::endl;

100 constexpr int

N = 65;

103

std::iota(arr, arr + N, 0);

104

std::reverse(arr, arr + N);

105

assert(!std::is_sorted(arr, arr + N));

108

assert(std::is_sorted(arr, arr + N));

115 int

arr[] = {5, 21, 7, 23, 19};

116 const int

n =

sizeof

(arr) /

sizeof

(arr[0]);

117

printf(

"Given Array is\n"

);

122

printf(

"After Sorting Array is\n"

);

double k(double x)

Another test function.

double l(double x)

Another test function.

int main()

Main function.

void merge(int *arr, int l, int m, int r)

void printArray(T *arr, int sz)

Testcases to check Union of Two Arrays.


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