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Create Sumoftherange.py #344

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10 changes: 10 additions & 0 deletions Sumoftherange.py
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Original file line number Diff line number Diff line change
@@ -0,0 +1,10 @@
def sumofrange(arr):
sumarr = [0]*(len(arr))
sumarr[0] = arr[0]
for i in range(1,len(arr)):
sumarr[i] = arr[i]+sumarr[i-1]
return sumarr
print(sumofrange([1,-2,3,10,-8,0]))
#Then give the query like sum in the range(2,4)
# the answer will be => sum(2,4) = sum(0,4) - sum(0,1)
# i.e., sum(i,j) = sum(0,j) - sum(0,i-1)