运用循环控制语句编写一段程序

Question

请运用循环控制语句，针对等差数列运算，编写一段程序。要求输入首项、公
后，计算其N项数值。

Answer 1

a = int(input())
b = int(input())
c = int(input())
answer = 0
for i in range(c-1):
    answer +=b
print(a+answer)

简易解法

a = int(input())
b = int(input())
c = int(input())
print(a+b*(c-1))