Compilare: user.cpp: In function ‘int main()’: user.cpp:53:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(t=0;t<v[j].size();t++) ^ user.cpp:54:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (v[j][t].y+cost<=actx && t<dp[j].size()) res=max(res,dp[j][t]); ^ user.cpp:23:22: warning: unused variable ‘pos’ [-Wunused-variable] { int i,j,t,cost,ind,pos,actx,acty,acts,sol=0,res,mxact; ^ user.cpp:23:31: warning: variable ‘acty’ set but not used [-Wunused-but-set-variable] { int i,j,t,cost,ind,pos,actx,acty,acts,sol=0,res,mxact; ^ user.cpp:23:51: warning: unused variable ‘mxact’ [-Wunused-variable] { int i,j,t,cost,ind,pos,actx,acty,acts,sol=0,res,mxact; ^