Compilare: main.cpp: In function 'void go_visit(int)': main.cpp:18:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<nod[pos].size();i++) ~^~~~~~~~~~~~~~~~ main.cpp: In function 'int solve()': main.cpp:29:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<more.size();i++) ~^~~~~~~~~~~~ main.cpp:31:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<more.size();i++) ~^~~~~~~~~~~~ main.cpp:37:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<more.size();j++) ~^~~~~~~~~~~~ main.cpp: In function 'void bkk(int)': main.cpp:51:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pos==more.size()) ~~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:123:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<more.size();i++) ~^~~~~~~~~~~~ main.cpp:124:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<nod[more[i]].size();j++) ~^~~~~~~~~~~~~~~~~~~~ main.cpp:134:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int g=0;g<chain.size();g++) ~^~~~~~~~~~~~~ main.cpp:145:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(g<chain.size()-1) ~^~~~~~~~~~~~~~~ main.cpp:151:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(g>0 && g<chain.size()-1) ~^~~~~~~~~~~~~~~