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Week 4: Prefix Sums
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Contest is over.
1 hour, 40 minutes long, starting on 23 Mar 2026, 04:20 pm
Problems
Problem
Points
AC rate
Users
Editorial
A
Scavenging in Fountains
sumarray
100
p
45.5%
23
Editorial
B
Range Additions
rangeadditions
100
p
37.7%
19
Editorial
C
City Lights Queries
citylights
100
p
76.5%
13
Editorial
D
Subarray Sums
subarraysumsii
100
p
21.4%
9
Editorial
E
Signal Flood
signalflood
100
p
77.8%
7
Editorial
F
Multiple of 2019
multipleof2019
100
p
47.1%
8
Editorial
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