Submission #538259

#	Time	Username	Problem	Language	Result	Execution time	Memory
538259		tkwiatkowski	Art Exhibition (JOI18_art)	Pypy 3	50 / 100	1096 ms	84732 KiB

art

from sys import stdin
input = stdin.readline

def solve():
	n = int(input())
	artworks = []
	for i in range(n):
		artworks.append(list(map(int, input().split())))

	artworks.sort()

	maxx = -10**18
	ans = 0
	pref = 0
	for a, b in artworks:
		maxx = max(a - pref, maxx)
		pref += b
		ans = max(maxx + pref - a, ans)
	print(ans)
solve()

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 0 / 50