#include <stdio.h>
int fib(int n){
if(n==0){return 0;
}
else if(n==1)
return 1;
else{
return fib(n-1)+fib(n-2);
}}
int main(void) {
int n,b;
printf("第%d項目は%dです",n
,fib
(n
)); return 0;
}
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