Compilare: main.cpp: In function 'int bs(int)': main.cpp:38:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(lg <= dp.size())lg <<= 1; ~~~^~~~~~~~~~~~ main.cpp:41:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(r+i < dp.size() && a > dp[r+i]){ ~~~~^~~~~~~~~~~ main.cpp: In function 'void dos()': main.cpp:49:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < s.size(); ++i){ ~~^~~~~~~~~~ main.cpp:51:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(a.second >= dp.size()){ ~~~~~~~~~^~~~~~~~~~~~ main.cpp:58:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < n && j+i < s.size(); ++j){ ~~~~^~~~~~~~~~ main.cpp:65:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(a.second >= dp.size()){ ~~~~~~~~~^~~~~~~~~~~~