#include<stdio.h>
#define SIZE 20
int main()
{
    int value_count=0;
    float fp1=0.0;
    int i=0;
    int j=0;
    char word1[SIZE]=" ";
    char word2[SIZE]=" ";
    int byte_count=0;
    value_count=scanf("%f %d %d %[abcdefghijklmnopqrstuvwxyz] %*d %s %n",
                      &fp1,&i,&j,word1,word2,&byte_count);
    printf("\nCount of bytes read = %d\n",byte_count);
    printf("\nCount of values read = %d\n",k);
    printf("\nfp1=%f i=%d j=%d",fp1,i,j);
    printf("\nword1=%s word2=%s\n",word1,word2);
    return 0;
}
报错内容：k undeclared(first use in the function)