Problem Link: SSEC0005
Problem :
An App wants a user to create strong passwords so password must be more than 3 digits and less than 10 digits. I run a website which hacks a particular user’s ID in that app. So once you login to my portal you will be provided with a link to login to the app and once an user clicks your link to login to that app,you will see his password.
But I made a mistake and so you cannot find original password in my portal . The portal is showing you by adding two in every digit . So , now you have to find out the original password of an user if I give you the password which is showing in your portal.
INPUT
The first line contains a single integer t (1 ≤ t ≤ 1000) — the number of test cases.
The first line of each test case contains a single integer n which is showing in my portal . Mind it , every digit of n is greater than one. OUTPUT
Print original password of user . SAMPLE INPUT
2
3527
47269
SAMPLE OUTPUT
1305
25047
Solution:
#include<bits/stdc++.h>
using namespace std;
typedef long long int ll;
int main() {
ll t;
cin>>t;
while(t–){
ll n,k=0,p=0;
cin>>n;
while(n){
k = k + pow(10,p++)*(n%10 - 2);
n /= 10;
}
cout<<k<<endl;
}
return 0;
}