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The scope of a variable is the area of the program where the variable is valid. A global variable is valid from the point it is declared to the end of the program. A local variable’s scope is limited to the block where it is declared and cannot be accessed (set or read) outside that block.
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What is the main difference between returning value of a function and does not return any value of a function in C. Which is correct void main(void), int main(void), int main(int) , or void main(int) and explain the main difference between int main() and int main(void).
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