Compilare: user.cpp: In function ‘int main()’: user.cpp:29:37: warning: unused variable ‘l’ [-Wunused-variable] int t, n, v[111][111], i, j, s, l; ^ user.cpp:31:9: warning: variable ‘w’ set but not used [-Wunused-but-set-variable] int w[111][111]; ^ user.cpp:52:16: warning: ‘k’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<k; ^