Eroare de compilare: main.cpp: In function 'int main()': main.cpp:262:151: error: 'sqrt' was not declared in this scope DD[++len].first = sqrt( (S[i].first - A[j].first) * (S[i].first - A[j].first) + (S[i].second - A[j].second) * (S[i].second - A[j].second) ); ^ main.cpp:292:29: warning: format '%f' expects argument of type 'double', but argument 3 has type 'std::pair<double, std::pair<int, int> >' [-Wformat=] fprintf(g,"%.6f ",DD[dr]); ^ main.cpp:242:22: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&N);s = 0;d = 2 * N + 1; ^ main.cpp:246:53: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lf %lf",&S[i].first,&S[i].second); ^ main.cpp:252:53: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lf %lf",&A[i].first,&A[i].second); ^ Non zero exit status: 1