Submission #3600869

---

Source Code Expand

n, k = map(int,input().split())
x = list(map(int,input().split()))
time = 10**9

for i in range(n - k + 1):
    x_k = x[i:i+k]
    #print(x_k)
    
    if x_k[0] >= 0:
        t = x_k[-1]
            
    elif x_k[-1] <= 0:
        t = -x_k[0]
    
    else:
        t = min(-x_k[0] + x_k[-1] *2,-x_k[0] * 2 + x_k[-1])

    time = min(t, time)
    
print(time)

Submission Info

Judge Result