Input and Output

Write the differences between formatted and unformatted I/O functions in C-programming.

Explain ‘flags’ and ‘precision’ in control string in case of printf() function.

What is the use of getchar () and putchar () functions in C? In the code below, write the output along with the explanation for each of the control string.

float f=12.8763;
printf("%08.2f", f);
printf("\n%-9.5f", f);