Compilare: user.cpp: In function ‘int main()’: user.cpp:37:29: warning: narrowing conversion of ‘c’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] v[x].push_back({y,c}); ^ user.cpp:38:29: warning: narrowing conversion of ‘c’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] v[y].push_back({x,c}); ^ user.cpp:52:29: warning: narrowing conversion of ‘x’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] r.push_back({t[x],x}); ^ user.cpp:59:35: warning: narrowing conversion of ‘d[j.strv::y]’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] heap.insert({d[j.y],j.y}); ^ user.cpp:65:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<r.size();i++) ^ user.cpp:31:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,tx,ty,x,y,c,total=0; ^ user.cpp:31:13: warning: unused variable ‘tx’ [-Wunused-variable] int i,j,tx,ty,x,y,c,total=0; ^ user.cpp:31:16: warning: unused variable ‘ty’ [-Wunused-variable] int i,j,tx,ty,x,y,c,total=0; ^