#include <stdio.h>
//再帰を用いて1からnまでの二乗和1^2 + 2^2 + 3^2 + ... + n^2を計算する
int rec(int n){
if (n == 1){
return 1;
}
else{
return n*n+rec(n-1);
}
}
int main(void) {
int n = 4;
int i;
for(i=1;i<=n;i++)
printf("1から%dまでの二乗和の値は%d\n", i
, rec
(i
)); return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+Ci8v5YaN5biw44KS55So44GE44GmMeOBi+OCiW7jgb7jgafjga7kuozkuZflkowxXjIgKyAyXjIgKyAzXjIgKyAuLi4gKyBuXjLjgpLoqIjnrpfjgZnjgosKaW50IHJlYyhpbnQgbil7CiAgICBpZiAobiA9PSAxKXsKCXJldHVybiAxOwogICAgfQogICAgZWxzZXsKCXJldHVybiBuKm4rcmVjKG4tMSk7CiAgICB9Cn0KaW50IG1haW4odm9pZCkgewogICAgaW50IG4gPSA0OwogICAgaW50IGk7CiAgICBmb3IoaT0xO2k8PW47aSsrKQogICAgcHJpbnRmKCIx44GL44KJJWTjgb7jgafjga7kuozkuZflkozjga7lgKTjga8lZFxuIiwgaSwgcmVjKGkpKTsKCXJldHVybiAwOwp9Cgo=