You are given a string num, which represents a large integer. You are also given a 0-indexed integer array change of length 10 that maps each digit 0-9 to another digit. More formally, digit d maps to digit change[d].
You may choose to mutate a single substring of num. To mutate a substring, replace each digit num[i] with the digit it maps to in change (i.e. replace num[i] with change[num[i]]).
Return a string representing the largest possible integer after mutating (or choosing not to) a single substring of num.
A substring is a contiguous sequence of characters within the string.
\n\n\n
Example 1:
\n\n\nInput: num = "132", change = [9,8,5,0,3,6,4,2,6,8]\nOutput: "832"\nExplanation: Replace the substring "1":\n- 1 maps to change[1] = 8.\nThus, "132" becomes "832".\n"832" is the largest number that can be created, so return it.\n\n\n
Example 2:
\n\n\nInput: num = "021", change = [9,4,3,5,7,2,1,9,0,6]\nOutput: "934"\nExplanation: Replace the substring "021":\n- 0 maps to change[0] = 9.\n- 2 maps to change[2] = 3.\n- 1 maps to change[1] = 4.\nThus, "021" becomes "934".\n"934" is the largest number that can be created, so return it.\n\n\n
Example 3:
\n\n\nInput: num = "5", change = [1,4,7,5,3,2,5,6,9,4]\nOutput: "5"\nExplanation: "5" is already the largest number that can be created, so return it.\n\n\n
\n
Constraints:
\n\n1 <= num.length <= 105num consists of only digits 0-9.change.length == 100 <= change[d] <= 9Compiled with clang 11 using the latest C++ 17 standard.
Your code is compiled with level two optimization (-O2). AddressSanitizer is also enabled to help detect out-of-bounds and use-after-free bugs.
Most standard library headers are already included automatically for your convenience.
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Python 2.7.12.
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\\r\\n\\r\\nFor Map/TreeMap data structure, you may use sortedcontainers library.
\\r\\n\\r\\nNote that Python 2.7 will not be maintained past 2020. For the latest Python, please choose Python3 instead.
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\\r\\n\\r\\nFor hash table operations, you may use uthash. \\\"uthash.h\\\" is included by default. Below are some examples:
\\r\\n\\r\\n1. Adding an item to a hash.\\r\\n
\\r\\nstruct hash_entry {\\r\\n int id; /* we'll use this field as the key */\\r\\n char name[10];\\r\\n UT_hash_handle hh; /* makes this structure hashable */\\r\\n};\\r\\n\\r\\nstruct hash_entry *users = NULL;\\r\\n\\r\\nvoid add_user(struct hash_entry *s) {\\r\\n HASH_ADD_INT(users, id, s);\\r\\n}\\r\\n\\r\\n\\r\\n\\r\\n2. Looking up an item in a hash:\\r\\n
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Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms
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Go 1.17.6.
Support https://godoc.org/github.com/emirpasic/gods library.
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