Compilare: main.cpp: In function 'int main()': main.cpp:109:12: warning: unused variable 'a' [-Wunused-variable] 109 | int m, n, a, b; | ^ main.cpp:109:15: warning: unused variable 'b' [-Wunused-variable] 109 | int m, n, a, b; | ^ main.cpp:110:6: warning: unused variable 'v' [-Wunused-variable] 110 | int v[2*MAX]; | ^ main.cpp:139:21: warning: 'answer' may be used uninitialized in this function [-Wmaybe-uninitialized] 139 | fout << answer << "\n"; | ^~~~