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Insert 5 to Make Number Largest in Python
Suppose we have a number n, we have to find the maximum number we can make by inserting 5 anywhere in the number.
So, if the input is like n = 826, then the output will be 8526.
To solve this, we will follow these steps −
- temp := n as a string
- ans := -inf
- for i in range 0 to size of temp, do
- cand := substring of temp from index 0 to i concatenate '5' concatenate substring of temp from index i to end
- if i is same as 0 and temp[0] is same as '-', then
- go for the next iteration
- ans := maximum of ans, and the number cand
- return ans
Let us see the following implementation to get better understanding −
Example
class Solution: def solve(self, n): temp = str(n) ans = float('-inf') for i in range(len(temp) + 1): cand = temp[:i] + '5' + temp[i:] if i == 0 and temp[0] == '-': continue ans = max(ans, int(cand)) return ans ob = Solution() print(ob.solve(826))
Input
826
Output
8526
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