initialize fenwick tree with values
for i = 1 to n:
j = i + (i & -i) # Finds next higher index that this value should contribute to
if j <= n:
x[j] += x[i]initialize fenwick tree with values
for i = 1 to n:
j = i + (i & -i) # Finds next higher index that this value should contribute to
if j <= n:
x[j] += x[i]Copyright © 2021 Codeinu
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