quicksort

[Solved] How can i sort a string with integers in c++?

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Here it’s done with std::sort from the header algorithm #include <iostream> #include <string> #include <algorithm> #include <vector> int main(){ std::vector<std::string> nums{ “922003001020293839297830207344987344973074734”, “766352786207892397340783784078348747606208602”, “182823068326283756515117829362376823572395775” }; std::cout << “unsorted: ” << std::endl; for (auto i : nums){ std::cout << i << std::endl; } std::sort(nums.begin(), nums.end()); //sort it std::cout << “\nsorted: ” << std::endl; for (auto i … Read more

[Solved] C++ QuickSort Isn’t Working Correctly [closed]

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Your first implementation worked but had degenerate behavior with specific datasets. The pivot in your original working code was *(last – 1) so the simplest fix would be to swap a random element with *(last – 1). The rest of your original partition code would work unchanged. 2 solved C++ QuickSort Isn’t Working Correctly [closed]

[Solved] How to create various types of inputs in order to test my algorithm? [closed]

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You can use Arrays.sort() to sort your array before feeding it, each of the following describe how to achieve one thing you asked for – try to do each on the array (one at a time) before invoking sort(a) To sort the array in ascending order: Arrays.sort(a); To sort the array in descending order: Arrays.sort(a,Collections.reverseOrder()); … Read more

[Solved] Quicksort cannot handle small numbers?

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Actually I could not find the exact problem in your program, but if you want a program to perform quicksort on an array of elements, this is it: #include<stdio.h> void quicksort(int [10],int,int); int main(){ int x[20],size,i; printf(“Enter size of the array: “); scanf(“%d”,&size); printf(“Enter %d elements: “,size); for(i=0;i<size;i++) scanf(“%d”,&x[i]); quicksort(x,0,size-1); printf(“Sorted elements: “); for(i=0;i<size;i++) printf(” … Read more