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Copy path70. UVa 1594 - Ducci Sequence.cpp
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70. UVa 1594 - Ducci Sequence.cpp
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#include <iostream>
using namespace std;
int main()
{
int t;
cin>>t;
while(t--){
int n;
cin>>n;
int arr[1001][n];
for(int i=0;i<n;i++){
cin>>arr[0][i];
}
for(int i=1;i<1001;i++){
for(int j=0;j<n;j++){
if(j!=n-1){
arr[i][j]=abs(arr[i-1][j]-arr[i-1][j+1]);
}
else{
arr[i][j]=abs(arr[i-1][j]-arr[i-1][0]);
}
}
int c=0;
for(int j=0;j<n;j++){
if(arr[i][j]==0)c++;
}
if(c==n){
cout<<"ZERO"<<endl;
break;
}
int b=0;
for(int j=0;j<i;j++){
c=0;
for(int k=0;k<n;k++){
if(arr[i][k]!=arr[j][k]){
break;
}
else c++;
}
if (c==n){
cout<<"LOOP"<<endl;
b=1;
break;
}
}
if(b==1)break;
}
}
}