What code to write in place of “// your code” so that the below code prints 20.
#include <stdio.h> int f();
int main()
{ int a = 0;
f();
printf ( "%d" ,a);
return 0;
} int f()
{ // your code
} |
Output:
20
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This question seems to be a trick question, as it is not possible to update local variable in a function without sending it, we can’t make value of ‘a’ as 20 but for outputting 20 we can write function f as below –
#include <stdio.h> int f();
int main()
{ int a = 0;
f();
printf ( "%d" ,a);
return 0;
} int f()
{ printf ( "2" );
} |
2 will be printed by f() and 0 will be printed by a
Thanks to Utkarsh Trivedi for suggesting above solution.
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