Compilare: main.cpp: In function 'int main()': main.cpp:59:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (ri > ansleft && ri != m + 1) ~~~^~~~~~~~ main.cpp:62:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (ri < ansright && ri > num && ri <= m) ~~~^~~~ main.cpp:66:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (ri < ansright && ri > num && ri < m) ~~~^~~ main.cpp:43:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%lld", &num) ; ^