Tower of Hanoi Problem: // { Driver Code Starts // Initial Template for C++
#include <bits/stdc++.h> using namespace std; // } Driver Code Ends // User function Template for C++ class Solution{ public: static int i=0; void hanoi(vector<int>& v,int N,int n,int start,int end) { i++; if(i==n) { v[0]=start; v[1]=end; return; } int other=6-(start+end); hanoi(v,N-1,n,start,other); hanoi(v,N-1,n,other,end); } vector<int> shiftPile(int N, int n){ // code here Solution::i=0; vector<int>v(2,0); hanoi(v,N,n,1,3); return v; } }; // { Driver Code Starts. int main(){ int t; cin>>t; while(t--){ int N, n; cin>>N>>n; Solution ob; vector<int> ans = ob.shiftPile(N, n); cout<<ans[0]<<" "<<ans[1]<<endl; } return 0; } // } Driver Code Ends The Error is coming in the class Solution that I cannot declare it [C++ forbids in-class initialization of non-const static member Solution::i].Please help to tackle the above problem.