Fedor Lyanguzov
75 lines
1.5 KiB
Python
75 lines
1.5 KiB
Python
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data = open("input.txt").read().strip()
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def f(data):
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data = list(map(int, data))
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nl = 1
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nr = len(data)//2
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l = data[0]
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s = data[0]*0
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i = 1
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j = -1
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while i<len(data)+j:
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if data[i]<=data[j]:
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s += sum(range(l, l+data[i]))*nr
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l += data[i]
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data[j] -= data[i]
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i += 1
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s += sum(range(l, l+data[i]))*nl
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l += data[i]
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nl += 1
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i += 1
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else:
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s += sum(range(l, l+data[j]))*nr
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l += data[j]
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nr -= 1
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data[i] -= data[j]
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j -= 2
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return s
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print(f(data))
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def fat(data):
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"FAT - File Allocation Table"
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data = list(map(int, data))
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files = []
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emptys = []
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l = 0
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n = 0
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for i in range(len(data)):
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if i%2==0:
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files.append([n, l, l+data[i]])
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n += 1
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else:
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emptys.append([l, l+data[i]])
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l += data[i]
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emptys = dict(enumerate(emptys))
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return files, emptys
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def f2(files, emptys):
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i = len(files)-1
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for _, s, e in reversed(files):
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for j, (l, r) in emptys.items():
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if e-s<=r-l or s<l:
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break
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if e-s<=r-l:
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files[i][1] = l
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files[i][2] = l+e-s
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if l+e-s==r:
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del emptys[j]
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else:
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emptys[j][0] = l+e-s
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i -= 1
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return sum(n*(s+e-1)*(e-s)//2 for n, s, e in files)
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assert f2(*fat("2333133121414131402"))==2858
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import cProfile
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cProfile.run('f2(*fat(data))')
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print(f2(*fat(data)))
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