Day 1

 1 #include<stdio.h>
 2 int main()
 3 {
 4 int cock,hen,chicken;
 5 for(cock=0;cock<=20;cock++)
 6 for(hen=0;hen<=33;hen++)
 7 for(chicken=0;chicken<=100;chicken++)
 8 {
 9 if((5*cock+3*hen+chicken/3.0==100)&&(cock+hen+chicken==100))
10 printf("cock=%2d,hen=%2d,chicken=%2d\n",cock,hen,chicken);
11 }
12 }