Compilare: user.cpp: In function ‘int main()’: user.cpp:54:29: warning: narrowing conversion of ‘x’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] r.push_back({t[x],x}); ^ user.cpp:67:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<r.size();i++) ^ user.cpp:32:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,tx,ty,x,y,total=0; ^ user.cpp:32:13: warning: unused variable ‘tx’ [-Wunused-variable] int i,j,tx,ty,x,y,total=0; ^ user.cpp:32:16: warning: unused variable ‘ty’ [-Wunused-variable] int i,j,tx,ty,x,y,total=0; ^