[FEATURE] Refactoring some Algorithm codes with presented code structure

[sonwon1999]

Detailed description

I saw some codes doesn't follow rules of Code Structure
like
namespace name{

class class{
}

template
bool func(){
}
}

static vod test(){
}

int main(){
}

I want to make All codes follow this structure

Context

The change makes regularity that provides us stability and good visibility

Possible implementation

No response

Additional information

No response

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