一、一个笼子里关了若干只兔子和鸡(兔子有4只腿,鸡有2只腿),则笼子里面至多有多少只动物,至少有多少只动物
n = eval(input()) l = list() for k in range(n): a = int(input()) if (a%2) != 0: min = max = 0 else: j = int(a/4) i = a%4 m = int(i/2) min = m+j max = int(a/2) l += [(min,max)] for b,c in l: print(b,c,end='') print(end=' ')
二、用户在同一行输入两个整数。代表头和脚的数量,计算笼子里有多少只鸡和兔子
head,foot = map(int,input().split()) if int(foot-head*2)/2==(foot-head*2)/2 and foot-head*2 > 0 and head>=0 and foot>=0: print(int(head-(foot-head*2)/2), int((foot-head*2)/2)) else: print('Data Error!')