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What would be the output of the following C program if input to the program is 'e'?
#include <stdio.h>
void main ()
{
char lower, upper;
lower = getchar();
upper= toupper (lower);
putchar (upper);
}
#include <stdio.h>
void main ()
{
char lower, upper;
lower = getchar();
upper= toupper (lower);
putchar (upper);
}A53
Be
CE
DNothing
Answer: Option (Login/Signup)
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As lower=getchar(), and the input is 'e', so lower will contain 'e'. In the next line 'e' will get converted to its upper case i.e, upper will contain 'E'. In the next line 'E' will get printed, so the correct option is option C.
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