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#include <stdio.h> | ||
#include <stdlib.h> | ||
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const int RUN = 32; | ||
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int MIN(int a ,int b) { | ||
return (a > b) ? b : a; | ||
} | ||
void insertionSort(int arr[], int left, int right) | ||
{ | ||
for (int i = left + 1; i <= right; i++) | ||
{ | ||
int temp = arr[i]; | ||
int j = i - 1; | ||
while (arr[j] > temp && j >= left) | ||
{ | ||
arr[j+1] = arr[j]; | ||
j--; | ||
} | ||
arr[j+1] = temp; | ||
} | ||
} | ||
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void merge(int arr[], int l, int m, int r) | ||
{ | ||
int len1 = m - l + 1, len2 = r - m; | ||
int left[len1], right[len2]; | ||
for (int i = 0; i < len1; i++) | ||
left[i] = arr[l + i]; | ||
for (int i = 0; i < len2; i++) | ||
right[i] = arr[m + 1 + i]; | ||
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int i = 0; | ||
int j = 0; | ||
int k = l; | ||
while (i < len1 && j < len2) | ||
{ | ||
if (left[i] <= right[j]) | ||
{ | ||
arr[k] = left[i]; | ||
i++; | ||
} | ||
else | ||
{ | ||
arr[k] = right[j]; | ||
j++; | ||
} | ||
k++; | ||
} | ||
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while (i < len1) | ||
{ | ||
arr[k] = left[i]; | ||
k++; | ||
i++; | ||
} | ||
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while (j < len2) | ||
{ | ||
arr[k] = right[j]; | ||
k++; | ||
j++; | ||
} | ||
} | ||
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void timSort(int arr[], int n) | ||
{ | ||
for (int i = 0; i < n; i+=RUN) | ||
insertionSort(arr, i, MIN((i+31), (n-1))); | ||
for (int size = RUN; size < n; size = 2*size) | ||
{ | ||
for (int left = 0; left < n; left += 2*size) | ||
{ | ||
int mid = left + size - 1; | ||
int right = MIN((left + 2*size - 1), (n-1)); | ||
merge(arr, left, mid, right); | ||
} | ||
} | ||
} | ||
void printArray(int arr[], int n) | ||
{ | ||
for (int i = 0; i < n; i++) | ||
printf("%d ", arr[i]); | ||
printf("\n"); | ||
} | ||
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int main() | ||
{ | ||
int arr[] = {5, 21, 7, 23, 19}; | ||
int n = sizeof(arr)/sizeof(arr[0]); | ||
printf("Given Array is\n"); | ||
printArray(arr, n); | ||
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timSort(arr, n); | ||
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printf("After Sorting Array is\n"); | ||
printArray(arr, n); | ||
return 0; | ||
} |