64 lines
1.4 KiB
C++
64 lines
1.4 KiB
C++
#include<cstdio>
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#include<cstdlib>
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#include<cmath>
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#include<algorithm>
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#include<cstring>
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const double eps=1e-9;
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const double pi=acos(-1.0);
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using namespace std;
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double l, r, ang;
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bool mark, ok;
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int an, bn, n;
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void check(double a)
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{
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if((!mark)&&(fabs(a-180.0)>eps)&&(fabs(a)>eps))mark=true;
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if(fabs(a-180.0)<eps)an++;
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else if(fabs(a)<eps)bn++;
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if(a<180.0&&a>l)l=a;
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else if(a>180.0&&360.0-a>r)r=360.0-a;
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if(l+r>180.0)ok=false;
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}
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int main()
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{
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int i, t;
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double tmp;
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scanf("%d", &t);
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while(t-->0)
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{
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ang=0;
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l=r=0;
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mark=false;
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an=0;bn=1;
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ok=true;
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scanf("%d", &n);
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for(i=0; i<n; i++)
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{
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scanf("%lf", &tmp);
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if(ok)
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{
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if(tmp<0)tmp=-tmp;
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else tmp=360.0-tmp;
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ang+=tmp;
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if(ang>=360.0)ang-=360.0;
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check(ang);
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}
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}
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if(ok)
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{
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if(!mark)
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{
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if(an>0)ok=false;
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}
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else
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{
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if(an>0&&fabs(l)<eps)l=180.0;
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else if(an>0&&fabs(r)<eps)r=180.0;
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if(l+r-180.00>eps)ok=false;
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}
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}
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if(ok)printf("No\n");
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else printf("Yes\n");
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}
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return 0;
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}
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