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- #include<bits/stdc++.h>
- using namespace std;
- long long int lucky4(int n)
- {
- int a=0,b=0,c,d,e,l,i=0,count=0;
- for(l=1000;l<1003;l++)
- {
- c=l;
- a=0,b=0;
- cout<<"c is"<<c<<endl;
- while(c>0)
- {
- ++i;
- d=c%10;
- cout<<"d is"<<d<<endl;
- if(i==1||i==2)
- {
- a+=d;
- // cout<<"a is"<<a<<endl;
- }
- else if(i==3||i==4)
- {
- b+=d;
- // cout<<"B is"<<b<<endl;
- }
- // cout<<"final a is"<<a<<endl;
- // cout<<"final b is"<<b<<endl;
- c/=10;
- }
- if(a==b)
- count++;
- }
- cout<<"count is"<<count<<endl;
- return count;
- }
- int main()
- {
- long long int n,a;
- cin>>n;
- if(n==2)
- cout<<"10"<<endl;
- else if(n==4)
- {
- a=lucky4(n);
- cout<<a<<endl;
- }
- /* else if(n==6)
- {
- a=lucky6(n);
- cout<<a<<endl;
- }
- else if(n==8)
- {
- a=lucky8(n);
- cout<<a<<endl;
- }
- */
- return 0;
- }
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