Compilare: user.cpp: In function ‘int main()’: user.cpp:68:6: warning: unused variable ‘ci’ [-Wunused-variable] int ci = 0, cj = 0; ^ user.cpp:68:14: warning: unused variable ‘cj’ [-Wunused-variable] int ci = 0, cj = 0; ^ user.cpp:15:8: warning: ‘start’ may be used uninitialized in this function [-Wmaybe-uninitialized] n = a; i = b; j = c; ^ user.cpp:44:6: note: ‘start’ was declared here int start, maxcol = 0, maxline = 0; ^