How hard is it to code a game in C++?

I'm just wanting a rough estimation here, but I, like most of the 4chan community, have ideas for games, or movies, or what have you.

So I'm learning C++, and I'm doing pretty good with everything I've learned so far.  I'm only taking a beginning course in my college, but I'm still doing good in it.

So, if I wanted to create a platform game, or a fighting game, or even a tile game (Pokemon Clone), how hard is it?

If I already had all the graphics, all the story written out, and all the gameplay mechanics worked out, how long, and how hard would it be to create a game from scratch, using just C++?

>>17
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Thanks for the info, but I meant plain C. I have a good free compiler whose biggest problem is the designer doesn't feel like supporting C++. So every time I have to handle botch strings via char arrays, ignore the possibility of lists, and forget about MS code because their documentation is at least MFC C++, I cry a little.

iostream, dynamic casts and assembly that GNU's jerks refuse to support in GCC-derived stuff, are also a pain. The funny thing is C claims to be better. C compilers lack these things. Meaning C itself sucks for game programming, because you reinvent the wheel or miss all the available book code-snippets.