C + + Learning (i)--Basic program design

1, first practice chicken and rabbit cage problem:

1#include <iostream>2 using namespacestd;3 intMain ()4 {5     inta,b,x,y;6cout <<"Please enter the total number of chickens and rabbits:";7CIN >>A;8cout <<"Please enter the total number of feet for chickens and rabbits:";9CIN >>b;Tenx = (4* A-B)/2; Oney = (b-2* a)/2; Acout <<"The total number of chickens is:"<< x <<Endl; -cout <<"The total number of ducks is:"<< y <<Endl; -     return 0; the}

To be honest, Cnbolog's code fonts don't look very satisfying.

2, the output results to find the average problem

1#include <iostream>2#include <iomanip>3 using namespacestd;4 intMain ()5 {6 //Enter the test results to find the average problem7     //include<iomanip>8     floatScore1,score2,score3,average;9cout <<"Please enter the exam results for each of the courses:"<<Endl;TenCIN >> Score1 >> score2 >>Score3; OneAverage = (Score1 + score2 + score3)/3; Acout << SETW (Ten) <<"Subjects"<< SETW ( A) <<"Achievements"<<Endl; -cout << SETW (Ten) <<"English"<< SETW ( A) << Score1 <<Endl; -cout << SETW (Ten) <<"Programming"<< SETW ( A) << Score2 <<Endl; thecout << SETW (Ten) <<"University Physics"<< SETW ( A) << Score3 <<Endl; -cout <<fixed; -Cout.precision (2); -cout <<"The average result of the student is:"<< Average <<Endl; +     return 0; -}

View Code

3, leap year, or not

1     intYear ;2cout <<"Enter the year:"<<Endl;3CIN >>Year ;4     if(year%4==0&& year% -!=0|| year% -==0)5     {6cout << Year <<"Is a leap year."<<Endl;7     }8     Else9     {Tencout << Year <<"Is isn't a leap year."<<Endl; One     } A     return 0;

C + + Learning (i)--Basic program design