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18 lines
303 B
C++
18 lines
303 B
C++
#include <iostream>
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using namespace std;
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int main()
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{
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int a[6],i,n;
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cin>>n;
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while(n--)
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{
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for(i=0;i<6;i++)
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cin>>a[i];
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if(a[0]-a[1]+a[2]-a[3]+a[4]-a[5]==0)
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cout<<"YES\n";
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else
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cout<<"NO\n";
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}
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return 0;
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}
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