Content
求一元二次方程式 ax2+bx+c=0 的根
Input
每組輸入共一行，內含三個整數 a, b, c 以空白隔開。
Output
Two different roots x1=?? , x2=??
Two same roots x=??
No real root
PS: 答案均為整數，若有兩個根則大者在前
Sample Input #1
1 3 -10
Sample Output #1
Two different roots x1=2 , x2=-5
Sample Input #2
1 0 0
Sample Output #2
Two same roots x=0
Sample Input #3
1 1 1
Sample Output #3
No real root
Python:
"""
Two different roots x1=?? , x2=??
Two same roots x=??
No real root
"""
from sys import stdin
a,b,c=map(int,stdin.readline().split())
if (b**2)-(4*a*c)<0:
print(f"No real root")
elif (b**2)-(4*a*c)==0:
print(f"Two same roots x={-b//(2*a)}")
else:
n=int(((b**2)-(4*a*c))**0.5)
print(f"Two different roots x1={(-b+n)//(2*a)} , x2={(-b-n)//(2*a)}")
文章標籤
全站熱搜
