C++ · Valgrind-clean · From $20
Do My C++ Homework
C++ is the one language graded twice: once when the output is right, and again when Valgrind confirms the program freed every byte it allocated. We deliver code that clears both gates, manual memory and all, written to your exact compiler.
0 bytes leaked · Pay 50% after it compiles · Built to your -std= flag
What we cover
The whole C++ toolchain, not just the syntax
C++ homework lives in the layer above raw memory: managed objects, the STL, and the build that ties it together. We work across the standard library, smart-pointer ownership, templates, virtual dispatch, and the grading instruments your course runs after the code compiles.
Every delivery picks the container for a reason, a std::vector over a std::list because the access pattern is random, an std::unordered_map for O(1) lookup, and chooses raw or smart pointers on purpose. You get two or three viva questions on those choices so you can defend the design.
Ownership is where most marks move. A std::unique_ptr carries the same runtime cost as a raw pointer and frees automatically through RAII, so we reach for it first. A shared_ptr adds an atomic reference count and a control block of about 16 bytes, which we use only when ownership is genuinely shared, and a weak_ptr breaks the cycle that would otherwise leak. Where the assignment forbids the smart-pointer headers and demands raw new and delete, we write the destructor by hand and prove it under the leak checker instead.
The deliverable
What a typical C++ assignment looks like
A C++ assignment is rarely one file. It is a header and source split, a build file, and a test target the grader runs. These four shapes cover most of the coursework we get. The intro and data-structures versions land in a 50 to 200 line band, the range CU Boulder CSCI 2270 states for its own problems, and the systems versions run longer.
A memory-managed data structure with a clean teardown
A singly or doubly linked list, a resizable dynamic array, or a hash table built from scratch with raw new and delete, then proven leak-free under Valgrind. This is the CPSC 221 and CSCI 2270 staple where the grade rides on the destructor, not just the output.
A templated container with the full Rule of Five
A generic Matrix<T>, Vector<T>, or Stack<T> with a copy constructor, copy-assignment, move constructor, move-assignment, and destructor. It survives a = b = c chains and self-assignment with no double-free. EECS 280 and CSCI 104 grade exactly this.
A class hierarchy with virtual dispatch
An abstract base such as Shape, Animal, or Account with virtual functions, a virtual destructor, and derived overrides. Marks come from polymorphic behavior and from clean deletion through a base pointer, which is where the missing virtual destructor usually bites.
A systems or algorithm project against a gtest autograder
A priority queue, a binary search tree, a graph traversal, or a small systems module such as file I/O or a custom allocator from CSE 333, shipped with a Makefile or CMakeLists.txt that the autograder builds and runs GoogleTest against.
Course context
C++ assignment help, scoped to your course
C++ sits on three rungs of the CS curriculum, and we match the conventions of each. We write to the same compiler flags, build system, and style guide your course grades on.
Data structures
The core C++ home. Michigan EECS 280 then EECS 281, USC CSCI 104, CU Boulder CSCI 2270 and CSCI 2275, and UBC CPSC 221. Linked lists, trees, heaps, and hash tables, all with manual memory.
Systems and tools
UW CSE 333 and CSE 374. Explicit memory management, smart pointers, the STL, OS-service calls, and the Makefile graded as its own artifact. Berkeley CS61C runs the Valgrind labs at the architecture level.
Modern C++
Stanford CS106L, seven short weekly assignments through modern C++ up to C++26: move semantics, templates, RAII, and the STL idioms the standard library expects.
The autograders behind these courses run on GitHub Classroom with CodeGrade or Gradescope. They build with your submitted Makefile or CMakeLists.txt, run a hidden GoogleTest suite, and gate marks on a clean Valgrind or AddressSanitizer run. We match all three before you submit.
C++ homework help
Where C++ homework goes wrong, and the fix
Six failure modes account for most of the marks C++ students lose after the code already compiles. Each one has a mechanical fix, and we apply it before delivery. A seventh, the no matching function for call error, comes from a template or overload mismatch and is fixed by checking argument deduction and the const and reference qualifiers.
A memory leak Valgrind flags as definitely lost
A new with no matching delete, or a destructor that forgets a member. We pair every allocation with a delete in the destructor, or hand ownership to a std::unique_ptr so RAII frees it for you, then re-run memcheck until the summary reads 0 bytes in 0 blocks.
A segfault from a dangling or null pointer
Dereferencing freed, uninitialized, or out-of-bounds memory. We reproduce it under GDB, read the backtrace to the faulting frame, add the null and bounds checks, and set pointers to nullptr after delete so the crash stops returning.
A double-free from a shallow copy
The default copy duplicates a pointer, so two objects free the same block. We write the copy constructor and copy-assignment with a deep copy, or use the copy-and-swap idiom, then add the move pair to complete the Rule of Five.
undefined reference to vtable for X at link time
A class declares virtual functions but its key function, usually the virtual destructor, is never defined. We anchor the vtable with one out-of-line definition in the .cpp and confirm the object file reaches the linker.
undefined reference for a function that compiles fine
A declared-but-undefined symbol, or a .cpp left out of the build. We define every declared function and add every translation unit to the Makefile or CMake target so the link resolves.
An iterator that dangles after push_back
A vector reallocates and a held iterator or pointer goes stale, or a range-for erases mid-loop. We re-acquire iterators after a mutating call and use the it = container.erase(it) return value so nothing points at freed storage.
The workflow
How help with C++ homework works
Four steps take you from a brief to a Valgrind-clean build. You pay half to start and the rest only after the code runs on your machine. The same named developer stays on your assignment from the quote through the final revision, so the person who wrote the destructor is the one who answers your question about it.
Send the brief and your -std= flag
Upload the spec, the rubric, your compiler and standard, and the deadline. Name the autograder if you have one, Gradescope or GitHub Classroom.
A C++ developer reads it and quotes
A developer who writes C++ daily reads the brief and sends one fixed price in 15 minutes. No hourly meter.
We build, then prove it clean
The code is written to your standard, deep-copied where it matters, and run under Valgrind or ASan until the leak summary is empty.
You compile, run, and pay the rest
Build it with the supplied Makefile or CMake, run it against the tests, and pay the second 50% once it works. 7 days of free revisions either way.
// before
$ valgrind ./list
==4127== definitely lost: 96 bytes in 4 blocks
==4127== Process terminating with default action of SIGSEGV
// autograder: 0/100 (segfault), 4 hidden gtest cases not run
// after (-std=c++17 -Wall -Wextra -Werror -pedantic)
$ valgrind ./list
==5310== All heap blocks were freed -- no leaks are possible
==5310== ERROR SUMMARY: 0 errors from 0 contexts
// dtor added, copy ctor + copy-assign deep-copied, vtable anchored
// autograder: 100/100, all gtest cases pass, delivered in 6hPricing
One fixed price per C++ assignment, from $20
Priced by complexity, not by a meter. A single-file script sits at the Standard tier. A multi-file templated container with its own build sits higher. You see the number before you pay, and there are no rush fees.
Get help with your C++ assignment
Questions, answered
Straight answers on memory checks, standards, autograders, and the build file, before you send the brief.
Will the code be Valgrind-clean and pass the memory-leak check? +
Yes. Every delivery runs clean under Valgrind or AddressSanitizer with a 0 bytes lost summary, and every new is either matched by a delete or replaced by a smart pointer before handoff.
Which C++ standard do you write to, C++11, 14, 17, or 20? +
Whichever your assignment specifies in its -std= flag. We default to the standard your course compiler uses, so the build behaves the same on your machine and on the grader.
Can you make it pass our GoogleTest autograder on Gradescope or GitHub Classroom? +
Yes. We build against the Makefile or CMakeLists.txt you submit and run the gtest suite before delivery, so the EXPECT and ASSERT checks pass, not just your console output.
My program segfaults or I get undefined reference to vtable. Can you fix just that? +
Yes. We take the fix-only job. We reproduce the crash under GDB and trace the faulting frame, or anchor the missing key function for the vtable error, and hand back the patched build.
Can you implement the Rule of Five so my class stops double-freeing? +
Yes. We write the copy constructor, copy-assignment, the move pair, and the destructor with copy-and-swap, then test it against self-assignment and a = b = c chains so no two objects free the same block.
Will it match the Google C++ Style Guide and pass clang-tidy or cpplint? +
Yes. Code is formatted with clang-format and cleared through the static-analysis linter your course grades on, so naming and const-correctness checks come back green.
Is this safe against MOSS plagiarism detection? +
The code is written original to your spec, not copied from a public solution, so its structure and comments differ from anything MOSS has on file. We promise original authorship, not a fabricated guarantee.
Do you include a Makefile or CMakeLists so it builds on the grader? +
Yes. A working build file ships with the code and is tested with a clean make or an out-of-source cmake build, so it compiles on the grader machine the same way it did on ours.
Related help
Working in a neighboring language?
C++ shares pointers and Valgrind with C, and trades manual memory for a garbage collector in Java. If your course sits next door, start here.
C Homework Help
The lower-level neighbor. Same pointers, segfaults, and Valgrind passes, without classes, templates, or the STL on top.
Java Homework Help
The garbage-collected contrast. No manual memory, but JUnit and Maven in place of GoogleTest and CMake.
Data Structures and Algorithms Homework Help
The hub your C++ data-structure work rolls up into: linked lists, heaps, BSTs, and priority queues across the curriculum.
Send your C++ brief, get a quote in 15 minutes
Tell us the standard, the build file, and the deadline. The first reply is free, and you pay nothing until you approve the price.