Compilare: main.cpp: In function 'int main()': main.cpp:182:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0;j<X[i].size()-1;++j) ~^~~~~~~~~~~~~~ main.cpp:187:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0;j<Y[i].size()-1;++j) ~^~~~~~~~~~~~~~ main.cpp:194:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (pos < X[i-1].size() && X[i-1][pos].first < it.first) ~~~~^~~~~~~~~~~~~~~ main.cpp:197:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (pos < X[i-1].size()) ~~~~^~~~~~~~~~~~~~~ main.cpp:207:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (pos < Y[i-1].size() && Y[i-1][pos].first < it.first) ~~~~^~~~~~~~~~~~~~~ main.cpp:209:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (pos < Y[i-1].size()) ~~~~^~~~~~~~~~~~~~~ main.cpp: In function 'int cautare_binara(int*, int, int)': main.cpp:103:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In member function 'char InParser::read_ch()': main.cpp:14:29: 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); ^