王道数据结构考研代码各位看一下为什么插入60之后data【1】的元素不见了

Question

#include <stdio.h>
#define MaxSize 100
typedef int ElemType;
typedef struct{
ElemType data[MaxSize];
int length;
}SqList;
void InitList(SqList& L){
for (int i; i < MaxSize; i++)
{ L.data[i] = 0;
}
}
bool ListInsert(SqList&L, int i, ElemType e){ if (i<1 || i>L.length + 1)
return false;
if (i >= MaxSize)
return false;
for ( int j= L.length;j >i; j--)
L.data[j] = L.data[j-1];
L.data[i - 1] = e;
L.length++;
return true;
}
int main(){
SqList L;
InitList(L);
bool ret;
ElemType del;
L.data[0]=1;
L.data[1]=2;
L.data[2]=3;
L.length=3;
ret = ListInsert(L, 2, 60);
return 0;
}

Answer 1

for循环中，要j>=i才行