Submission #256352

#	Time	Username	Problem	Language	Result	Execution time	Memory
256352		SpeedOfMagic	Stove (JOI18_stove)	Cpython 3	100 / 100	399 ms	13500 KiB

stove

n, k = map(int, input().split())
l = []
for i in range(n):
	l.append(int(input()))
d = []
for i in range(1, n):
	d.append(l[i] - l[i - 1])
d = sorted(d)
ans = 0
for i in range(n - k):
	ans += d[i] - 1
print(ans + n)

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 50 / 50