Compilare: user.cpp: In function ‘void check()’: user.cpp:68:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(cont!=v.size()) sol=0; ^ user.cpp: In function ‘void solve(int, int, int)’: user.cpp:73:9: warning: unused variable ‘aux’ [-Wunused-variable] int aux[DM][DM]; ^ user.cpp: In function ‘int main()’: user.cpp:89:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<aux.size();++j){ ^ user.cpp:107:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v.size();++i) ^ user.cpp:109:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int l=1;l<=v.size();++l) for(int i=0;i+l-1<v.size();++i){ ^ user.cpp:109:59: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int l=1;l<=v.size();++l) for(int i=0;i+l-1<v.size();++i){ ^ user.cpp:112:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i+l<v.size()) solve(i,i+l-1,i+l); ^