Python語言基礎(百元買百雞)
需求分析
百錢買百雞的問題算是一套非常經典的不定方程的問題,題目很簡單:
公雞5文錢一只,母雞3文錢一只,小雞3只一文錢,
用100文錢買一百只雞,其中公雞,母雞,小雞都必須要有,問公雞,母雞,小雞要買多少只剛好湊足100文錢。
案例代碼
用while循環實現
xj = 1
while xj <= 100:
mj = 1
while mj <= 100:
gj = 1
while gj <= 100:
if xj/3 + mj *3 + gj * 5 == 100 and xj + mj + gj==100:
print('小雞', xj, '母雞', mj, '公雞', gj)
gj += 1
mj += 1
xj += 1
用for…in 循環實現
for i in range(1,101):
for j in range(1,101):
for k in range(1,101):
if i/3 + j *3 + k * 5 == 100 and i+j+k==100:
print('小雞',i,'母雞',j,'公雞',k)