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Daily bit(e) of C++ | std::accumulate, std::partial_sum
Daily bit(e) of C++ #291, The two single-range left-fold algorithms: std::accumulate and std::partial_sum.
std::accumulate and std::partial_sum are single-range left-fold algorithms.
Both algorithms operate strictly left-to-right, std::accumulate producing a single value, std::partial_sum emitting all partial results.
Due to the left-to-right operation, these algorithms are less performant than generalized reductions but permit reduction operations with side effects and state.
