题解 | #打印极值点下标#

#include <iostream>
using namespace std;

int main() {
    int k;
    while (cin >> k) { 
        int jz[k];
        for(int i=0;i<k;i++)
        {
            cin>>jz[i];
        }
        for(int i=0;i<k;i++)
        {
            if(i==0)
            {
                if(jz[0]<jz[1]||jz[0]>jz[1])
            {
                cout<<i<<" ";
            }
            }
            else if(i==(k-1))
            {
                if(jz[i]<jz[i-1]||jz[i]>jz[i-1])
                {
                    cout<<i<<" ";
                }
            }
            else{
                if(((jz[i]<jz[i-1])&&(jz[i]<jz[i+1]))||((jz[i]>jz[i-1])&&(jz[i]>jz[i+1])))
                {
                    cout<<i<<" ";
                }
            }
        }
        cout<<endl;
    }
}