C++题解

C++题解

#include <iostream>
using namespace std;
int main(){
    int n,m;
    cin >> n;
    m = n;
    while (n >= 3){
        m += n/3;
        n = n/3+n%3;
    }cout << m;
    return 0;
}

换成printf:

#include <cstdio>
using namespace std;
int main(){
    int n,m;
    scanf("%d",&n);
    m = n;
    while (n >= 3){
        m += n/3;
        n = n/3+n%3;
    }printf("%d",m);
    return 0;
}