#include <stdio.h>
//練習問題F
int func(int n){
int a=-1;
int i;
for (i = 0; i < n; i++) {
a = 3 * a+5;
}
return a;
}
int main(void) {
int n = 3;
printf("数列anについて, n=%dのときの値は%d\n", n
, func
(n
)); return 0;
}
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