#include <stdio.h>
int main() {
//ここを作成
int i,j,a,b,count=0;
a=2;
b=9;
for(i=2;i<a;i++){
for(j=a;j>=b;j++){
if(b%a==0)
count++;
}
}
printf("a以上b以下にある素数の個数は%dである",count
);
return 0;
}
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