Submission #633089

#	Time	Username	Problem	Language	Result	Execution time	Memory
633089		karolb2011	Potatoes and fertilizers (LMIO19_bulves)	Pypy 3	100 / 100	604 ms	46072 KiB

bulves

import sys
import heapq as hq
input = sys.stdin.readline
n=int(input())
p=0
s=[]
z=0
for i in range(n):
    a,b=list(map(int,input().split()))
    p+=b-a
    s.append(p)
w=[]
for c in s:
    if c>0:
        z+=c
        c=0
    elif c<p:
        z-=c-p
        c=p
    hq.heappush(w,c)
    if w[0]<c:
        hq.heappush(w,c)
        z+=abs(hq.heappop(w)-c)
print(z)

• Subtask 1: 24 / 24
• Subtask 2: 10 / 10
• Subtask 3: 20 / 20
• Subtask 4: 10 / 10
• Subtask 5: 36 / 36