Compilare: main.cpp: In function 'int main()': main.cpp:43:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=0 ; i<n ; i++) ^~~ main.cpp:52:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for(int i=0 ; i<n ; i++) ^~~ main.cpp:53:10: warning: this 'for' clause does not guard... [-Wmisleading-indentation] {for(int j=0 ; j<n ; j++) ^~~ main.cpp:54:55: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' cout<<setfill (' ') << setw (2)<<v[i][j]<<" ";cout<<endl;} ^~~~ main.cpp:28:9: warning: unused variable 'nr' [-Wunused-variable] int nr=0; ^~