Compilare: main.cpp: In function 'void solve(int)': main.cpp:106:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<pp[nod].size();i++) ~^~~~~~~~~~~~~~~ main.cpp:108:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<ev[nod].size();i++) ~^~~~~~~~~~~~~~~ main.cpp:114:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<kids.size();j++) ~^~~~~~~~~~~~ main.cpp:121:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int p=0;p<pp[kids[j]].size();p++) ~^~~~~~~~~~~~~~~~~~~ main.cpp:134:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<have.size();i++) ~^~~~~~~~~~~~ main.cpp:136:8: warning: unused variable 'poz' [-Wunused-variable] ll poz=0; ^~~ main.cpp:137:8: warning: unused variable 'total' [-Wunused-variable] ll total=0; ^~~~~