How can I change the output of printf() in main() in C?

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You can use Macro Arguments to change the output of printf(). #include stdio.h void fun() { #define printf(x, y) printf(x, 10); } int main() { int i = 10; fun(); i = 20; printf("%d", i); return 0; }
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U should use the concepts of functions to get this answer . By using the function we should use the return statements accordingly.
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Yes u can but u should be clear about the logic. Its very easy when u try to remember the logic.
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int p=0; for( int i= 2;i<=9;i++) { for( int j=2;j
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