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- #include<bits\stdc++.h>
- using namespace std;
- int main()
- {
- int t;
- cin >> t;
- while(t--)
- {
- int n;
- scanf("%d", &n);
- int a[n], i, sum = 0;
- for(i = 0; i < n; i++)
- {
- cin >> a[i];
- sum += a[i];
- }
- if(sum == 0) printf("NO\n");
- else
- {
- printf("YES\n");
- sort(a, a+n);
- if(sum > 0) for(i = n - 1; i >= 0; i--) printf("%d ", a[i]);
- else for(i = 0; i < n; i++) printf("%d ", a[i]);
- printf("\n");
- }
- }
- }
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