Compilare: main.cpp: In function 'void calcpozitii()': main.cpp:194:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<v_left[i].size();j++){ ~^~~~~~~~~~~~~~~~~ main.cpp:204:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<v_right[i].size();j++){ ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void upd_right(int, int, int)': main.cpp:215:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(;poz<aib_right[sol].size();poz+=poz&-poz) ~~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void cntright()': main.cpp:226:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<=v_right[i].size();j++) ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void upd_left(int, int, long long int, long long int, long long int)': main.cpp:247:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(;poz<aib_left[sol].size();poz+=poz&-poz){ ~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void calcfinalleft()': main.cpp:256:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<=v_left[i].size();j++) ~^~~~~~~~~~~~~~~~~~ main.cpp:259:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(best_left[i]+best_right[i]==Max+1) ^ main.cpp: In member function 'char InParser::read_ch()': main.cpp:25:29: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, 4096, fin); ^