#include <stdio.h>
void func(int n){
static int count=0;
count++;
printf("%dは%d番目の素数\n",n
,count
); }
int prime(int n) {
int i;
int sosuu=1;
for(i=2;i<n;i++){
if(n%i==0){
sosuu=0;
break;
}
}
return sosuu;
}
int main(void){
int x;
for(int i=2;i<20;i++){
x=prime(i);
if(x==1){
func(i);
}
}
return 0;
}
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