This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
int main() { ios_base::sync_with_stdio(0),ios::sync_with_stdio(0),cin.tie(0),cout.tie(0); int z; cin >>z; while(z--){long long q,d,s=0,t=0,x=0; cin >> q>>d; for(long long z2=0;z2<q;z2++){long long q2; cin >>q2; if(q2>=d){ while(q2>=d){if(x==0){s+=d; q2-=d; x=4; }else {t+=d; q2-=d; x=0;}} if(q2>0){if(x==0)s+=q2,q2=0,x=4; else t+=q2,q2=0,x=0; }}else {if(x==0){ s+=q2;q2=0,x=4; }else {t+=q2,q2=0,x=0;}}}if(s>t)cout<<1; else cout<<0;}}
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