JUST WANT TO DO

/****Author: Mahammad Mammadov ****/

include<bits/stdc++.h>

define ll long long

define nl '\n'

define pb push_back

define PI 3.14159265358979323846

define imm INT_MAX

define im INT_MIN

define ull unsigned long long

using namespace std; /*FUNCTIONS/ /****/ mt19937 rng(chrono::steadyclock::now().timesince_epoch().count());

ll productOfDigits(ll num) {

ll product = 1;

while (num > 0) {

ll digit = num % 10;

product *= digit;

num /= 10;

}

return product;

}

ll findPersistence(ll n) {

ll persistence = 0;

while (n >= 10) { n = productOfDigits(n); persistence++; } return persistence; }

void solve()

{ ll i,n,j,m,k,say=0,cem=0,maks=im,minu=imm; while(cin>>n) { cout<<findPersistence(n)<<nl; } } /*MAIN CODE/ int main() { ios::sync_with_stdio(0); cin.tie(0); //freopen("input.txt", "r", stdin); //freopen("output.txt", "w", stdout); int t=1; //cin>>t; while(t--) { solve(); } return 0; } /(~~)*/