Eroare de compilare: user.cpp:13:1: error: expected initializer before ‘int’ int n,m; ^ user.cpp: In function ‘bool ok(int, int)’: user.cpp:19:29: error: ‘n’ was not declared in this scope return(v[i][j]==0 && i<=n && j<=m && i>0 && j>0); ^ user.cpp:19:37: error: ‘m’ was not declared in this scope return(v[i][j]==0 && i<=n && j<=m && i>0 && j>0); ^ user.cpp: In function ‘int main()’: user.cpp:49:8: error: ‘n’ was not declared in this scope f>>n>>m; ^ user.cpp:49:11: error: ‘m’ was not declared in this scope f>>n>>m; ^ user.cpp: In function ‘bool ok(int, int)’: user.cpp:20:1: warning: control reaches end of non-void function [-Wreturn-type] } ^