c语言高级点的编程代码怎么写

高级爱心代码编程c语言

Title: Advanced C Programming Techniques```cinclude // Function prototypesvoid mergeSort(int arr[], int l, int r);void merge(int arr[], int l, int m, int r);int main() { int arr[] = {12, 11, 13, 5, 6, 7}; int arr_size = sizeof(arr) / sizeof(arr[0]);...