Compilare: user.cpp: In function ‘void Initialize()’: user.cpp:41:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<Number[j].size();k++) ^ user.cpp: In function ‘int maximum(int, int)’: user.cpp:56:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<Number[x].size();i++) ^ user.cpp:62:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<Number[y].size();i++) ^ user.cpp: In function ‘void Solve()’: user.cpp:104:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<Number[current].size();i++) ^ user.cpp: In function ‘int maximum(int, int)’: user.cpp:78:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp:74:29: warning: ‘ind2’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(maximum(ind1,ind2)==ind1) ^ user.cpp:74:9: warning: ‘ind1’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(maximum(ind1,ind2)==ind1) ^