1:
"""
Given an array of integers, return indices of the two numbers such that they add up to a specific target.
You may assume that each input would have exactly one solution, and you may not use the same element twice.
Example:
Given nums = [2, 7, 11, 15], target = 9,
Because nums[0] + nums[1] = 2 + 7 = 9,
return [0, 1].
"""
def solve_ways(arrays,res):
dic=dict()
for k,v in enumerate(arrays):
s = res-v
if s in dic:
print [k,dic[s]]
else:
dic[v]=k
solve_ways([1,2,3,6],7)