#t155. 计算输出2
计算输出2
Calculation Output 2
Problem Description
Compute the value of the expression and print the result.
Input Format
This problem has no input.
Output Format
Print one line containing a single real number: the value of the expression, kept to two decimal places.
Hint
- The result is a fraction and must be shown to two decimal places: you need the format controls from
<iomanip>(fixedandsetprecision, used before). - Warning: the expression contains a division — think about where integer division would happen and whether some value must be written in decimal form.
- Work it out on paper first, then check your program's output.