练习7-10 查找指定字符 (15 分)

#include <stdio.h>
main(){
int n, i=0;
char c;
char a[80];
scanf("%c\n",&c);
while((a[i]=getchar())!='\n')
    i++; 
int flag =0;
int index;
for(int j=0;j<i;j++){
    if(a[j]==c){
    index=j;
    flag=1;
	}
}
if(flag==1)printf("index = %d",index);
else printf("Not Found");
return 0;
 }