{ "data": { "question": { "questionId": "3018", "questionFrontendId": "2825", "boundTopicId": null, "title": "Make String a Subsequence Using Cyclic Increments", "titleSlug": "make-string-a-subsequence-using-cyclic-increments", "content": "
You are given two 0-indexed strings str1
and str2
.
In an operation, you select a set of indices in str1
, and for each index i
in the set, increment str1[i]
to the next character cyclically. That is 'a'
becomes 'b'
, 'b'
becomes 'c'
, and so on, and 'z'
becomes 'a'
.
Return true
if it is possible to make str2
a subsequence of str1
by performing the operation at most once, and false
otherwise.
Note: A subsequence of a string is a new string that is formed from the original string by deleting some (possibly none) of the characters without disturbing the relative positions of the remaining characters.
\n\n\n
Example 1:
\n\n\nInput: str1 = "abc", str2 = "ad"\nOutput: true\nExplanation: Select index 2 in str1.\nIncrement str1[2] to become 'd'. \nHence, str1 becomes "abd" and str2 is now a subsequence. Therefore, true is returned.\n\n
Example 2:
\n\n\nInput: str1 = "zc", str2 = "ad"\nOutput: true\nExplanation: Select indices 0 and 1 in str1. \nIncrement str1[0] to become 'a'. \nIncrement str1[1] to become 'd'. \nHence, str1 becomes "ad" and str2 is now a subsequence. Therefore, true is returned.\n\n
Example 3:
\n\n\nInput: str1 = "ab", str2 = "d"\nOutput: false\nExplanation: In this example, it can be shown that it is impossible to make str2 a subsequence of str1 using the operation at most once. \nTherefore, false is returned.\n\n
\n
Constraints:
\n\n1 <= str1.length <= 105
1 <= str2.length <= 105
str1
and str2
consist of only lowercase English letters.i
for str1
and pointer j
for str2
, while ensuring they remain within the bounds of the strings.str1[i]
and str2[j]
match, or if incrementing str1[i]
matches str2[j]
, we increase both pointers; otherwise, we increment only pointer i
.str2
a subsequence of str1
if j
is at the end of str2
, after we can no longer find a match.Compiled with clang 11
using the latest C++ 20 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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Most standard library headers are already included automatically for your convenience.
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Python 2.7.12
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Most libraries are already imported automatically for your convenience, such as array, bisect, collections. If you need more libraries, you can import it yourself.
\\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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3. Deleting an item in a hash:\\r\\n
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Node.js 16.13.2
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Your code is run with --harmony
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lodash.js library is included by default.
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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 1.18
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Most libraries are already imported automatically for your convenience, such as array, bisect, collections. If you need more libraries, you can import it yourself.
\\r\\n\\r\\nFor Map/TreeMap data structure, you may use sortedcontainers library.
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Kotlin 1.3.10
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Rust 1.58.1
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Dart 2.17.3
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