# 1663. Smallest String With A Given Numeric Value

Smallest String With A Given Numeric Value - LeetCode

The numeric value of a lowercase character is defined as its position (1-indexed) in the alphabet, so the numeric value of a is 1, the numeric value of b is 2, the numeric value of c is 3, and so on. The numeric value of a string consisting of lowercase characters is defined as the sum of its characters' numeric values. For example, the numeric value of the string “abe” is equal to 1 + 2 + 5 = 8. You are given two integers n and k. Return the lexicographically smallest string with length equal to n and numeric value equal to k. Note that a string x is lexicographically smaller than string y if x comes before y in dictionary order, that is, either x is a prefix of y, or if i is the first position such that x[i] != y[i], then x[i] comes before y[i] in alphabetic order.

• code
``````class Solution:
def getSmallestString(self, n: int, k: int) -> str:
res = [0] * n

for i in range(n-1, -1, -1):
v = min(k - i, 26)
res[i] = chr(v + ord('a') - 1)
k -= v
return "".join(res)
``````
• code
``````class Solution:
def getSmallestString(self, n: int, k: int) -> str:
res = ['a'] * n

k -= n
i = n - 1
while k > 0: