_304_range_sum_query_2d_immutable

Documentation

Index

• type NumMatrix
  • func Constructor(matrix [][]int) NumMatrix
  • func (nm *NumMatrix) SumRegion(row1 int, col1 int, row2 int, col2 int) int

Types

type NumMatrix

type NumMatrix struct {
	// contains filtered or unexported fields
}

func Constructor

func Constructor(matrix [][]int) NumMatrix

func (*NumMatrix) SumRegion

func (nm *NumMatrix) SumRegion(row1 int, col1 int, row2 int, col2 int) int