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What is the code of sorting out an given unsorted array in text file for c plus plus?
Wiki User
∙ 6y ago
Sorting arrays (of any type) can be achieved with the C++ standard library std::sort function:
std::array<int, 5> a {9, 3, 5, 1, 7}; // fixed-length array
std::vector<int> b {9, 3, 5, 1, 7}; // variable length array
int c[] = {9, 3, 5, 1, 7}; // C-style array
std::sort (a.begin(), a.end());
std::sort (b.begin(), b.end());
std::sort (c, c+5);
Wiki User
∙ 6y ago
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You would sort the given elements of an array by a bubble sort or heap sort code!!
What is the code for sorting in C plus plus?
There are many sorting algorithms. One of the simplest to implement is the insertion sort. The following template function will sort an array of any type T that supports the less-than operator. It works by splitting the array into two subsets, where the left portion is sorted and the right is unsorted. Initially, the sorted portion has just one element since a set of one element can always be regarded as being sorted. We then work our way through each of the unsorted elements, from left to right, inserting them into their correct place in the sorted portion. To do this we need to store the current unsorted value thus creating a gap at the beginning of the unsorted portion. This gap then becomes the last element of the sorted portion, reducing the unsorted portion by one element. We then work our way through the sorted elements starting with the element to the left of the gap. If the stored value is less than the current element's value then we copy that element into the gap, thus moving the gap one position to the left. We continue in this manner until gap is at index 0 or the stored value is not less than the element to the left of the gap. We then place the stored value in the gap. We repeat this for all unsorted elements until there are none left, at which point the array is completely sorted. template<typename T> void sort(std::vector<T>& v) { if( v.size()>1 ) { for( size_t i=1; i<v.size(); ++i ) { T t = v[i]; size_t gap=i; while( gap && t<v[gap-1] ) v[gap]=v[gap--]; v[gap]=t; } } }
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