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What is the difference between block structured language and highly block structured language

Block Structure Langguage Bassically a normal programming language in which sections of source code contained within pairs of matching delimiters such as "" and "" (e.g. in C) or "begin" and "end" (e.g. Algol) are executed as a single unit. Its A class of high-level languages in which a program is made up of blocks � which may include nested blocks as components, such nesting being repeated to any depth.

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What is the problem with the following code segment? while ((fgets(receiving array,50,file_ptr)) != EOF)
main() { main(); }
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What happens to the member function in the class when copy constructor is invoked?
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What is the difference between block structured language and highly block structured language
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main() { char i=0; for(;i>=0;i++) ; printf("%d\n",i); }
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