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// verification-helper: PROBLEM http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=1328 #include <bits/stdc++.h> using namespace std; #define call_from_test #include "../../linearalgebra/matrix.cpp" #undef call_from_test signed main(){ cin.tie(0); ios::sync_with_stdio(0); using M = Matrix<double>; using arr = M::arr; int d; while(cin>>d,d){ arr vs(d+3); for(int i=0;i<d+3;i++) cin>>vs[i]; int ans=0; M m(d+3,d+2); for(int i=0;i<d+3;i++) for(int j=0;j<d+1;j++) m[i][j]=pow(1.0*i,j); for(int i=0;i<d+3;i++){ for(int j=i+1;j<d+3;j++){ arr b(d+1); M A(d+1,d+1); for(int k=0,l=0;k<d+3;k++) if(i!=k&&j!=k) A[l]=m[k],b[l]=vs[k],l++; arr x=M::linear_equations(A,b); if(x.empty()) continue; double res[2]={}; for(int k=0;k<d+1;k++){ res[0]+=x[k]*m[i][k]; res[1]+=x[k]*m[j][k]; } const double EPS = 1e-5; if(abs(res[0]-vs[i])>0.5&&abs(res[1]-vs[j])<EPS) ans=i; if(abs(res[0]-vs[i])<EPS&&abs(res[1]-vs[j])>0.5) ans=j; } } cout<<ans<<endl; } return 0; }
Traceback (most recent call last): File "/opt/hostedtoolcache/Python/3.11.3/x64/lib/python3.11/site-packages/onlinejudge_verify/documentation/build.py", line 71, in _render_source_code_stat bundled_code = language.bundle(stat.path, basedir=basedir, options={'include_paths': [basedir]}).decode() ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/hostedtoolcache/Python/3.11.3/x64/lib/python3.11/site-packages/onlinejudge_verify/languages/cplusplus.py", line 187, in bundle bundler.update(path) File "/opt/hostedtoolcache/Python/3.11.3/x64/lib/python3.11/site-packages/onlinejudge_verify/languages/cplusplus_bundle.py", line 401, in update self.update(self._resolve(pathlib.Path(included), included_from=path)) File "/opt/hostedtoolcache/Python/3.11.3/x64/lib/python3.11/site-packages/onlinejudge_verify/languages/cplusplus_bundle.py", line 400, in update raise BundleErrorAt(path, i + 1, "unable to process #include in #if / #ifdef / #ifndef other than include guards") onlinejudge_verify.languages.cplusplus_bundle.BundleErrorAt: linearalgebra/matrix.cpp: line 128: unable to process #include in #if / #ifdef / #ifndef other than include guards