这个代码的意思#include int f(int n){if (n == 1){return 1;}return f(n-1)+n*n;}int main(){int n;while (scanf("%d",&n) == 1){printf("%d\n",f(n));}return 0;}

这个代码的意思#include int f(int n){if (n == 1){return 1;}return f(n-1)+n*n;}int main(){int n;while (scanf("%d",&n) == 1){printf("%d\n",f(n));}return 0;}
这个代码的意思
#include
int f(int n){
if (n == 1){
return 1;
}
return f(n-1)+n*n;
}
int main(){
int n;
while (scanf("%d",&n) == 1){
printf("%d\n",f(n));
}
return 0;
}

这个代码的意思#include int f(int n){if (n == 1){return 1;}return f(n-1)+n*n;}int main(){int n;while (scanf("%d",&n) == 1){printf("%d\n",f(n));}return 0;}
1,5,14,30,55...求第n个的值
每次后面的值相加前面的值+ 次数的平方 1,1+2*2 ,1+2*2+3*3...