Created
December 20, 2021 13:16
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Find the index position of the lower boundary in the array, then insert the data to the index, and move the index to all elements backward by one
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| #include <iostream> | |
| #include <string> | |
| int main() { | |
| std::string s("ABCCDDEEFF"); | |
| int l = 0; | |
| int r = s.size() - 1; | |
| int mid; | |
| char c = 'G'; | |
| while (l <= r) { | |
| mid = (r - l) / 2 + l; | |
| if (s[mid] < c) { | |
| l = mid + 1; | |
| } else if (s[mid] == c) { | |
| r = mid - 1; | |
| } else if (s[mid] > c) { | |
| r = mid - 1; | |
| } | |
| } | |
| std::cout << s.size() << std::endl; | |
| s.push_back(' '); | |
| std::cout << s.size() << std::endl; | |
| for (int i = s.size() - 1; i > l; i--) { | |
| s[i] = s[i - 1]; | |
| } | |
| s[l] = c; | |
| std::cout << "got insert index: " << l << std::endl; | |
| std::cout << "got at after insert: " << s << std::endl; | |
| } |
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