Compilare: main.cpp: In function 'int main()': main.cpp:37:15: warning: unused variable 'j' [-Wunused-variable] 37 | int n, i, j, sol=0, k, crt; | ^ main.cpp:37:18: warning: unused variable 'sol' [-Wunused-variable] 37 | int n, i, j, sol=0, k, crt; | ^~~ main.cpp:37:28: warning: unused variable 'crt' [-Wunused-variable] 37 | int n, i, j, sol=0, k, crt; | ^~~