A61600. 2021年信息学奥赛CSP-J初赛阅读程序题:#include <iostream>
编程题
知识点
题目描述
2021年信息学奥赛CSP-J初赛阅读程序题:
#include <iostream>
using namespace std;
const int n = 100000;
const int N = n + 1;
int m;
int a[N],b[N],c[N], d[N];
int f[N],g[N];
void init()
{
f[1] = g[1] = 1;
for (int i = 2; i <= n; i++){
if (!a[i]) {
b[m++] = i;
c[i] = 1, f[i] = 2;
d[i] = 1, g[i] = i+ 1;
}
for (int j = 0; j < m && b[j] * i <= n; j++){
int k = b[j];
a[i * k] = 1;
if (i % k == 0){
c[i * k] = c[i] + 1;
f[i * k] = f[i] / c[i * k]*(c[i * k] + 1);
d[i * k] = d[i];
g[i * k] = g[i] * k + d[i];
break;
}
else {
c[i * k] = 1;
f[i * k] = 2 * f[i];
d[i * k] = g[i];
g[i * k] = g[i] * (k + 1);
}
}
}
}
int main() {
init();
int x;
cin >> x;
cout<<f[x]<<" "<<g[x]<<endl;
return 0;
}假设输入的x是不超过1000的自然数,完成下面的判断题和单选题: