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Merge pull request #370 from ThejaswinS/main
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Added Smallest String With A Given Numeric Value
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SarthakKeshari committed Oct 8, 2021
2 parents 5978055 + 0376ced commit a6be034
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Question Link: https://leetcode.com/problems/smallest-string-with-a-given-numeric-value/
28 changes: 28 additions & 0 deletions LeetCode/Smallest String With A Given Numeric Value/question.txt
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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.



Example 1:

Input: n = 3, k = 27
Output: "aay"
Explanation: The numeric value of the string is 1 + 1 + 25 = 27, and it is the smallest string with such a value and length equal to 3.
Example 2:

Input: n = 5, k = 73
Output: "aaszz"


Constraints:

1 <= n <= 105
n <= k <= 26 * n
18 changes: 18 additions & 0 deletions LeetCode/Smallest String With A Given Numeric Value/solution.cpp
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class Solution {
public:
string getSmallestString(int n, int k) {
string s(n,'a'); //initiall assign all letters as a
k=k-n; //subract count of a
for(int i=n-1;i>=0;i--){
if(k>25){ //check balance k greater than 25 if it is then add 'z' at end
s[i]='z';
k=k-25;
}
else{ //else we add the character if it is less than equal 25
s[i]=97+k;
break;
}
}
return s;
}
};

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