35 lines
821 B
C++
35 lines
821 B
C++
/**
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* File: selection_sort.cpp
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* Created Time: 2023-05-23
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* Author: krahets (krahets@163.com)
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*/
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#include "../utils/common.hpp"
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/* 选择排序 */
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void selectionSort(vector<int> &nums) {
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int n = nums.size();
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// 外循环：未排序区间为 [i, n-1]
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for (int i = 0; i < n - 1; i++) {
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// 内循环：找到未排序区间内的最小元素
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int k = i;
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for (int j = i + 1; j < n; j++) {
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if (nums[j] < nums[k])
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k = j; // 记录最小元素的索引
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}
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// 将该最小元素与未排序区间的首个元素交换
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swap(nums[i], nums[k]);
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}
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}
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/* Driver Code */
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int main() {
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vector<int> nums = {4, 1, 3, 1, 5, 2};
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selectionSort(nums);
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cout << "选择排序完成后 nums = ";
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printVector(nums);
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return 0;
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}
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