雄雞7元1只，母雞5元1只 ，小雞1元1只。百錢百只。問各有幾只？？？

 1 //程序
 2 #include <iostream>
 3 #include<fstream>
 4 
 5 using namespace std;
 6 
 7 int main()
 8 {
 9 
10     int cock, hen, chicken;
11 
12     for (cock = 1;cock <= 13;cock++)
13     {
14         for (hen = 1;hen <= 18;hen++)
15         {
16             if
 
 (7 * cock + 5 * hen + (100 - cock - hen) / 3 == 100 && (100 - cock - hen) % 3 == 0)            
//兩個條件：錢數100，只數100，小雞要被3整除
17                 cout << "cock:" << cock << endl << "hen:" << hen <<endl << "chicken:" << 100-cock-hen << endl;
18         }
19     }
 
20 
21     cin.ignore();
22     cin.get();
23     return 0;
24 }

cock:3
hen:10
chicken:87

百錢買百雞問題程序