不知道我这里顺序查找和二分查找出来的是什么东西，而且还不一样的qwq

Question

问题遇到的现象和发生背景

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define MAXSIZE 20
#include<iostream>
typedef int element;  // 自定义int类型element
#define list_size 10000

using namespace std;

typedef struct
{
    int key;
}Redtype;

typedef struct SqList
{
    element* elem;
    Redtype r[MAXSIZE + 1];
    int length;
};

int creatnewlist(SqList& L, int n);// 建立顺序表
int initit(SqList& L);

int initit(SqList& L)  //建表初始化
{
    L.elem = (int*)malloc(sizeof(int));
    if (!L.elem) return -1;
    L.length = 0;
    return 0;
}

int creatnewlist(SqList& L, int n)  // 建立顺序表
{
    int i;
    L.elem = (int*)malloc(sizeof(int) * list_size);
    if (!L.elem) return -1;
    else
    {
        for (i = 0; i < n; i++)
        {
            scanf_s("%d", &L.elem[i]);
            L.length++;
        }
    }
    return 0;
}
int Search_Seq(SqList L, int key)
{
    L.r[0].key = key;
    for (int i = L.length; !(L.r[i].key = key); --i)
    {
        return i;
        //printf("%d", i);
    }
}

int Search_Bin(SqList L, int key)
{
    int low = 1;
    int high = L.length;
    while (low <= high)
    {
        int mid = (low + high) / 2;
        if (key = L.r[mid].key) 
            return mid;
        else if (key < L.r[mid].key) 
            high = mid - 1;
        else 
            low = mid + 1;
    }
    return 0;
}

//void ShellSore(SqList& L, int dlat[], int t)
//{
//    for (int k = 0; k < t; k++)
//        printf("%d", dlat[t]);
//}


void show(SqList &L)  //输出顺序表
{
    int i;
    for(i = 0;i<L.length;i++)
    {
        if(i==L.length-1) printf("%d\n", L.elem[i]);
        else printf("%d ", L.elem[i]);
    }
}


int main()
{
    int n;
    int dlat[10];
    printf("请输入数：");
    //int len;
    //scanf_s("%d", &len);
    
    
    
    SqList L;

    initit(L);

    creatnewlist(L, 10);
    Search_Bin(L, 1);
    Search_Seq(L, 1);
    
    printf("结果1");
    int pos = Search_Bin(L, 1);
    printf("%d\n", pos);

    printf("结果2");
    int sa = Search_Seq(L, 1);
    printf("%d", sa);
    
}

问题相关代码，请勿粘贴截图

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我想要达到的结果