partial_sum
Syntax:
#include <numeric> iterator partial_sum( iterator start, iterator end, iterator result ); iterator partial_sum( iterator start, iterator end, iterator result, BinOp p );
The partial_sum() function calculates the partial sum of a range defined by [start,end), storing the output at result.
- start is assigned to *result, the sum of *start and *(start + 1) is assigned to *(result + 1), etc.
partial_sum() runs in linear time.
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