以下是一个使用C++编程语言的示例代码,用于查找给定数列中的升序或降序的最大子序列:
#include <iostream>
#include <vector>
void findMaxSubsequences(const std::vector<int>& sequence) {
std::vector<std::vector<int>> maxSubsequences;
std::vector<int> currentSubsequence;
for (size_t i = 0; i < sequence.size() - 1; ++i) {
currentSubsequence.push_back(sequence[ i]);
if ((sequence[ i] < sequence[i + 1] && i == sequence.size() - 2) ||
(sequence[ i] >= sequence[i + 1] && i != sequence.size() - 2)) {
maxSubsequences.push_back(currentSubsequence);
currentSubsequence.clear();
}
}
// Print the max subsequences
for (const auto& subsequence : maxSubsequences) {
std::cout << "(";
for (size_t i = 0; i < subsequence.size(); ++i) {
std::cout << subsequence[ i];
if (i != subsequence.size() - 1)
std::cout << ",";
}
std::cout << ")";
}
std::cout << std::endl;
}
int main() {
std::vector<int> sequence = {1, 20, 30, 12, 3, 5, 7, 4, 6, 100, 11, 8};
findMaxSubsequences(sequence);
return 0;
}
这段代码首先定义了一个函数findMaxSubsequences,该函数接收一个整数向量sequence作为参数。代码中使用两个向量来存储最大子序列和当前子序列。然后,通过遍历给定的数列,将元素逐个添加到当前子序列中。当遇到升序或降序结束时,将当前子序列添加到最大子序列向量中,并清空当前子序列。最后,打印出所有的最大子序列。
在main函数中,定义了示例数列{1,20,30,12,3,5,7,4,6,100,11,8}并调用findMaxSubsequences函数来查找最大子序列,并输出结果。
请注意,本回答来自GPT-4
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