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Input / Output - Programming

Q1:

To print out a and b given below, which of the following printf() statement will you use? 
#include<stdio.h>

float a=3.14;
double b=3.14;

A printf("%f %lf", a, b);

B printf("%Lf %f", a, b);

C printf("%Lf %Lf", a, b);

D printf("%f %Lf", a, b);

ANS:A - printf("%f %lf", a, b);

To print a float value, %f is used as format specifier. To print a double value, %lf is used as format specifier. Therefore, the answer is printf('%f %lf', a, b);