Submission #2649449

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
#define rep(i,s,e) for(int (i) = (s);(i) <= (e);(i)++)

int N;

int main(){
  cin >> N;
  int result = N;
  for(int n = 0;n <= N;n++){
    int nn = n;
    int m = N - n;

    int ans = 0;
    int nine = 1;
    while(nine * 9 <= nn) nine *= 9;
    while(nine != 1){
      ans += nn / nine;
      nn %= nine;
      nine /= 9;
    }
    ans += nn;
    nn = m;
    nine = 1;
    while(nine * 6 <= nn) nine *= 6;
    while(nine != 1){
      ans += nn / nine;
      nn %= nine;
      nine /= 6;
    }
    ans += nn;
    result = min(ans , result);
  }

  cout << result << endl;
}

Submission Info

Judge Result