Compilare: user.cpp: In function ‘bool val()’: user.cpp:25:15: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(j=1; j<=m; j++) ^~~ user.cpp:26:35: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ g<<c[i][v[j]]<<" "; g<<endl;} g<<endl;} ^