Submission #632994

#	Time	Username	Problem	Language	Result	Execution time	Memory
632994		karolb2011	Potatoes and fertilizers (LMIO19_bulves)	Cpython 3	0 / 100	1100 ms	22720 KiB

bulves

import sys
input = sys.stdin.readline
n=int(input())
t=0
p=0
s=[]
ww=0
for i in range(n):
    pi,bi=list(map(int,input().split()))
    p+=pi-bi
    s.append(p)
w=[0 for i in range(p+1)]
for c in s:
    q=False
    if c<0:
        ww-=c
        c=0
    elif c>p:
        ww+=c-p
        c=p
    for j in range(p+1):
        z=c-j
        if z>=0:
            w[j]+=z
        else:
            w[j]-=z
            if w[j]>=w[j-1]:
                mm=w[j-1]
                q=True
                break
    if q:
        for k in range(j,p+1):
            w[k]=mm
print(w[p]+ww)

• Subtask 1: 0 / 24
• Subtask 2: 0 / 10
• Subtask 3: 0 / 20
• Subtask 4: 0 / 10
• Subtask 5: 0 / 36