Created
November 15, 2014 07:41
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#include <iostream> | |
#include <algorithm> | |
#include <vector> | |
#include <stack> | |
#include <queue> | |
#include <map> | |
#include <cmath> | |
#include <string> | |
#include <sstream> | |
#include <iomanip> | |
#include <complex> | |
using namespace std; | |
#define ll long long | |
#define vvi vector< vector<int> > | |
#define All(X) X.begin(),X.end() | |
#define FOR(i,a,b) for(int i=(int)(a);i<(int)(b);i++) | |
#define REP(i,n) for(int i=0;i<(int)(n);i++) | |
#define pb push_back | |
ll gcd(ll a,ll b){return b?gcd(b,a%b):a;} | |
ll lcm(ll a,ll b){return a/gcd(a,b)*b;} | |
string IntToString(ll int number){ | |
stringstream ss; | |
ss << number; | |
return ss.str(); | |
} | |
string tmp; | |
string tmp2; | |
int main(){ | |
int q,cnt; | |
cin >> q; | |
REP(i,q){ | |
cin >> tmp; | |
tmp2 = tmp; | |
cnt = 0; | |
while(tmp.size()!=1){ | |
int mmax = -1; | |
FOR(i,1,tmp.size()){ | |
string st1,st2; | |
FOR(j,0,i) st1 += tmp[j]; | |
FOR(j,i,tmp.size()) st2 += tmp[j]; | |
mmax = max(mmax,stoi(st1)*stoi(st2)); | |
} | |
cnt++; | |
tmp = IntToString(mmax); | |
if(tmp==tmp2){ | |
cnt = -1; | |
break; | |
} | |
} | |
cout << cnt << endl; | |
} | |
return 0; | |
} |
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