#include<iostream> #include<vector> #include <algorithm> using namespace std; int main() { int n; cin>>n; vector <int> v(n); for (int i=0;i<n;i++) { cin>>v[i]; } auto max = max_element(v.begin(), v.end()); auto min = min_element(v.begin(), v.end()); int mmin=min-v.begin(); int mmax=max-v.begin(); int a1=v[0],a2=v[mmin],a3=v[n-1],a4=v[mmax]; v[0]=a2,v[mmin]=a1,v[n-1]=a4,v[mmax]=a3; for (int i=0;i<n;i++) {cout<<v[i]<<" "; } r
请问您是希望对这段 C++ 代码进行解释、优化，还是解决其中存在的问题，亦或是基于这段代码做进一步的拓展呢？从这段代码来看，它的主要功能是输入 `n` 个整数到一个向量中，然后交换向量中的第一个元素和最小值的位置，以及最后一个元素和最大值的位置，最后输出交换后的向量元素。 不过这段代码目前存在一个小问题，在最后输出时缺少 `return 0;` 语句来表示程序正常结束返回值。 [2024-11-04 11:28:05 | AI写代码神器 | 113点数解答]
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