Compilare: main.cpp: In function 'double divide(long long int, long long int)': main.cpp:40:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (long long j = 0; j < vnou.size() - 1; ++j) { ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:55:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lld", &n); ^ main.cpp:58:45: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lld%lld",&v[i].x,&v[i].y); ^