Compilare: main.cpp: In function 'int main(int, const char**)': main.cpp:91:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<drepte[i].size();++j) ~^~~~~~~~~~~~~~~~~ main.cpp:63:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cerc3.in","r",stdin); ^ main.cpp:64:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cerc3.out","w",stdout); ^ main.cpp:66:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ main.cpp:68:51: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lf%lf%lf",&v[i].x,&v[i].y,&v[i].r); ^