《c++程序设计教程_第2版_》课后习题（C++ programming tutorial Second Edition _ _ after-school exercise）.docVIP

《c++程序设计教程_第2版_》课后习题（C++ programming tutorial Second Edition _ _ after-school exercise） No. The 1 chapter is about C++ language One Two Three Four Five Modified example 1-1 Hello World program that enables it to be displayed on a computer screen: I, am, a, student, and, I, like Programming! Modified example 1-3 addition calculator program, the preparation of a multiplication calculator program. Modified example 1-4 birthday card program so that it can enter and display the date. Reference example 1-5, calculate the value of the definite integral under the ladder method. (SiN x + E DX) Respect. 11x Among them, integral areas and other fractions are desirable 200, and compare the calculation results with the results of hand calculation. Tip: ex uses standard mathematical Libraries Library functions in cmath Exp (x) representation. As usual 1-6, the preparation of a rectangular area calculation procedures. No. The 2 chapter is the basic data type 1. as an example 2-2 add the data check section. Given the three side length, it is possible to test whether or not it can form a triangle Check whether any sides and sides are greater than the third sides. If the test fails, the output information is Error Data! 2. enter two angle values X, y, the value is calculated as follows. Sin (x | | + | y |) Cos (x | + Y |) 3. write a program that requires the following requirements: 1) prompt the user to enter any 3 decimal places; 2) show these three decimals; 3) add the three decimals and show the result; 4) convert the results into integers and display the results by four five. 4. enter any three integers from the keyboard, then output the three numbers and calculate their mean values. 5. write a program, the string Love is translated into cipher, and the decoding method adopts substitution encryption method The original letters are in the back of the alphabet A substitution of 3 letters, such as letters C is used F Replace letters Y B to replace. Tip: respectively 4 character vari