Compilare: main.cpp: In function 'void gen()': main.cpp:22:17: warning: unused variable 'k' [-Wunused-variable] 22 | int k=n*(i-1)+j+2; | ^ main.cpp: In function 'void sol()': main.cpp:87:25: warning: 'mij' may be used uninitialized [-Wmaybe-uninitialized] 87 | fout << mij; | ^~~ main.cpp:75:31: note: 'mij' was declared here 75 | int st=1,dr=n,mij; | ^~~ main.cpp:66:25: warning: 'mij' may be used uninitialized [-Wmaybe-uninitialized] 66 | fout << mij; | ^~~ main.cpp:55:31: note: 'mij' was declared here 55 | int st=1,dr=n,mij; | ^~~