Compilare: main.cpp: In function 'int main()': main.cpp:105:19: warning: unused variable 'n1' [-Wunused-variable] 105 | const int n1 = val[x][y], n2 = val[z][t]; | ^~ main.cpp:105:35: warning: unused variable 'n2' [-Wunused-variable] 105 | const int n1 = val[x][y], n2 = val[z][t]; | ^~