说说遇到的scanf错误（1）

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


#define arrsize 100
#define VALUE int
#define DIR char


typedef struct A {
VALUE Value;
DIR Dir;
}VectorQuantity;


int elenum;


VectorQuantity *GetData(VectorQuantity *VQ)
{
scanf("%d", &elenum);
for (int i = 0;i <= elenum-1;i++)
scanf("%d%c", &VQ[i].Value, &VQ[i].Dir);
return VQ;
}


void GetInsertData(VectorQuantity *a)
{
scanf("%c%d", &a->Value, &a->Dir);    //格式输入错误
}


VectorQuantity *InsertData(VectorQuantity *OriginalData,VectorQuantity *InsertData, int Pos)
{
OriginalData += (elenum + 1);
if (Pos >= 0 && Pos <= elenum + 2)
{
if (Pos == elenum + 2)
{
OriginalData->Value = InsertData->Value;
OriginalData->Dir = InsertData->Dir;
}
else
{
for (int i = (elenum + 2 - Pos);i > 0;i--, OriginalData--)
{
OriginalData->Dir = (OriginalData - 1)->Dir;
OriginalData->Value = (OriginalData - 1)->Value;
}
OriginalData->Value = InsertData->Value;
OriginalData->Dir = InsertData->Dir;
}
}


else
printf("error!");
return OriginalData - Pos+1;
}


void main()
{
VectorQuantity vq[arrsize],VQ;


GetData(vq);
GetInsertData(&VQ);


InsertData(vq, &VQ, 1);


for (int i = 0;i <= elenum;i++)
printf("(%d,%c)\n", vq[i].Value, vq[i].Dir);


system("pause");

}

结果：