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Create 21 October Split the Array #391

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19 changes: 19 additions & 0 deletions 21 October Split the Array
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Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
class Solution {
public:
int countgroup(vector<int>& arr) {
// Complete the function
int mod=1e9+7;
int x=arr[0];
for(int i=1;i<arr.size();i++){
x^=arr[i];
}
if(x!=0){
return 0;
}
int ans=1;
for(int i=0;i<arr.size()-1;i++){
ans=(2*ans)%mod;
}
return ans-1;
}
};