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Memory-safe, well-structured C++ for data structures, systems and game projects. Builds with your flags and passes Valgrind.

C++11–C++20STLCMake / MakeGoogleTestValgrindgdb
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What we cover

Every part of C++ your course covers.

Core

  • Classes, constructors, RAII
  • Pointers and references
  • Templates
  • Operator overloading

STL & data structures

  • vector, map, unordered_map
  • Lists and trees from scratch
  • Priority queues and heaps
  • Iterators and algorithms

Systems

  • Smart pointers
  • File streams
  • std::thread
  • Makefiles and CMake

Projects

  • Games and simulations
  • Graph algorithms
  • Matrix and numerical code
  • Qt GUIs
Example order

One C++ order, start to finish.

What the student uploaded, what came back, and how the price was set.

01The brief
Data Structures and AlgorithmsUndergradDue in 3 days

Templated binary heap priority queue

Implement a templated binary heap with push, pop and top in O(log n). No STL heap functions. Must build with -Wall -Werror and pass Valgrind with zero leaks.

Requirements
  • Templated on type and comparator
  • O(log n) push and pop
  • No std::push_heap or priority_queue
  • Zero leaks under Valgrind
02The solution
BinaryPQ.h25 lines
1template <typename T, typename Comp = std::less<T>>
2class BinaryPQ {
3public:
4 void push(const T& val) {
5 data.push_back(val);
6 fixUp(data.size() - 1); // restore heap order
7 }
8 void pop() {
9 data[0] = data.back();
10 data.pop_back();
11 if (!data.empty()) fixDown(0);
12 }
13 const T& top() const { return data[0]; }
14
15private:
16 std::vector<T> data;
17 Comp comp;
18 void fixUp(size_t i) {
19 while (i > 0 && comp(data[(i - 1) / 2], data[i])) {
20 std::swap(data[i], data[(i - 1) / 2]);
21 i = (i - 1) / 2;
22 }
23 }
24 void fixDown(size_t i);
25};
22 tests passing · g++ -Wall -Werror · 0 leaks
03The explanation doc
explanation.pdf
1.
Heap stored in a vector
Parent of i is (i − 1) / 2, children are 2i + 1 and 2i + 2. No pointers, so nothing to leak.
2.
Comparator as a template parameter
Passing std::greater turns it into a min-heap with zero runtime cost.
3.
Complexity
push and pop are O(log n); top is O(1).
04The price
AI predicted budget
$90–$160
Level · UndergradIncluded
Deadline · 3 daysStandard
Shown before any contact details were shared.
Final price from our team
$125
Delivered 9h early
How it works

From upload to predicted budget in under a minute.

The AI does one job: it predicts your price. A person on our team reviews your files and sets the final number.

  1. 01
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  2. 02
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    The AI asks what’s missing

    It confirms your due date, then asks only what your files don’t say. One question at a time.

  3. 03
    Step 3 of 4

    See your predicted budget

    A price range appears right away, before you share any contact details.

  4. 04
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    Our team confirms the final price

    Leave your email. A senior engineer reviews your files and sends the final price.

No payment to get a price. You only pay after you accept the final price from our team.

Typical orders

Common C++ assignments and typical budgets.

Linked list, stack or queue from scratch
$60–$130
Usually 2–3 days
typical range
Templated container or heap
$90–$180
Usually 3–4 days
typical range
Graph algorithms project
$110–$240
Usually 3–5 days
typical range
Game or simulation (SFML, Qt)
$150–$350
Usually 5–7 days
typical range

Your budget depends on your files, deadline and level. Upload them for your own prediction.

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Missed deadline, or code that doesn’t meet the brief after revisions? You get a full refund to your original payment method.
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For 14 days after delivery, we revise until it matches your original instructions. No fees.
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Tell us the compiler and flags, or send the Makefile. We test with the same g++ or clang version.

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