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Toshlarni teng bo'lish | HackNow
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Toshlarni teng bo'lish
lock
UZ only
Oson
15 points
1 s
256 MB
Prefix Sum
Author:
neo_yamaguchi
Input format
Output format
Constraints
Examples
3
1
Example #1
Input
5 1 2 3 2 1
Output
3
2
Example #2
Input
4 1 1 1 1
Output
2
3
Example #3
Input
3 1 2 4
Output
-1
Solution editor
Python 3
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PYTHON
UTF-8
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