Question

write statement for each of the following: a. print 1234 right justified in a 10-digit field. b. print 123.456789 in exponential notation with a sign ( or -) and 3 digits of precision. c. read a double value into a variable number. d. print 100 in octal form preceded by 0. e. read a string into a character array string. f. read characters into array n until a non digit character is encountered. g. use integer variables x and y to specify the field width and precision used to display the double value 87.4573. 2 cmpe 30 h. read a value of the form 3.5%. store the percentage in float variable percent and eliminate the % from the input stream. do not use the assignment suppression character. i. print 3.333333 as a long double value with a sign ( or -) in a field of 20 characters with a precision of 3.

Answer 1

STATEMENTS :
a. printf("%10d", 1234);
b. printf("%+e", 123.456789);
c. scanf("%lf", &number);
d. printf("%#o", 100);
e. scanf("%s", string);
f. scanf("%[0123456789]", n);
g. printf("%*.*f", x, y, 87.4573);
h. scanf("%f", &percent); getchar();
i. printf("%+20.3Lf", 3.333333);

What is variable ?

In computer science, a variable is a labeled container for a certain set of bits or type of data. A variable is an abstract storage place with an associated symbolic name that stores a known or unknown array of data referred to as a value (like integer, float, string etc...). Eventually, a memory location may be used to link or identify a variable. In addition to using the variable name or the value itself, depending on circumstances, the stored value is typically referenced by the variable name.

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