ac-library-python
Data Structures:
Fenwick Tree
Segment Tree
Lazy Segment Tree
String Algorithms
Math:
Math
atcoder.math.inv_mod
atcoder.math.crt
atcoder.math.floor_sum
floor_sum()
atcoder.math.pow_mod
Convolution
Modint
Graphs:
Disjoint Union Set
Maximum Flow
Minimum-Cost Flow
Strongly Connected Components
2-SAT
ac-library-python
Math
atcoder.math.floor_sum
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atcoder.math.floor_sum
atcoder.math.
floor_sum
(
n
:
int
,
m
:
int
,
a
:
int
,
b
:
int
)
→
int