Program crashes with "delete"

[acdc123]

Here's my function:

	Note *temp;
	level_elapsed_time = timeGetTime() - level_start_time;
 
	for(int i = 0; i < 18; ++i)
	{
		bool disposeNote = false;
		for(int j =0; j < notes[i].size(); ++j)
		{
			temp = notes[i].at(j);
			bool next = false;
			if(temp->getSpawnTime() <= level_elapsed_time)	
			{
				temp->updateYPos();
				
				if (j == 0)
				{
					if(temp->getYPos() < 335)
					{
						if(GetAsyncKeyState(keyConstants[i]))
						{
							combo = 0;
						}

					}

					else if(temp->getYPos() >= 335 && temp->getYPos() <= 365)
					{
						if(GetAsyncKeyState(keyConstants[i]))
						{
							disposeNote = true;
							combo += 1;
						}

					}
					else
					{
						disposeNote = true;
						combo = 0;
					}
				}

				if(disposeNote)
				{
					delete temp;
					notes[i].erase(notes[i].begin());
				}
				
			}
			else
			{
				break;
			}
		}

	}
}

when i insert delete temp right before the function ends, my program crashes. Without that extra line, the program works fine but lags after some time.

What's wrong in there?

[Moschops]

Put simply, you can only delete what you new. There is no new in this code, so why would there be a delete?

[acdc123]

Oh thanks! Im new to c++ an I'm wondering if there are any memory leaks in that part of the code?? Thanks!

[Moschops]

Unless one of the functions you've written that gets called above uses a new somewhere, there are no memory leaks.

[acdc123]

Thanks a lot! One more thing though, my program slows down a bit after about 15 seconds of running, aside from memory leaks, are there any possible reason why the program slows down??