Submission #1285927

#	Time	Username	Problem	Language	Result	Execution time	Memory
1285927		Joon_Yorigami	Art Exhibition (JOI18_art)	Pypy 3	100 / 100	831 ms	236864 KiB

art

n,*r,=map(int,open(0).read().split())
pref=[0]
indices=[*range(n)]
indices.sort(key=lambda x:r[(x<<1)])
z=0
acc=0
for _ in indices:
    b=r[(_<<1)+1]
    z=max(z,b)
    acc+=b
    pref.append(acc)
maxi=r[(indices[0]<<1)]
for i in range(n):
    a=r[indices[i]<<1]
    z=max(z,pref[i+1]-a+maxi)
    maxi=max(maxi,a-pref[i])
print(z)

Compilation message (stdout)

Compiling 'art.py'...

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  adding: __main__.pyc (deflated 30%)

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