Compilare: main.cpp: In function 'int main()': main.cpp:34:13: warning: unused variable 'k' [-Wunused-variable] int k = 0 , ans = 0; ^ main.cpp:51:61: warning: 'cal' may be used uninitialized in this function [-Wmaybe-uninitialized] ll t2 = 1LL * h [ax][ay] * h [ax][ay] * cal ; ^~~ main.cpp:52:53: warning: 'cop' may be used uninitialized in this function [-Wmaybe-uninitialized] ll t1 = 1LL * (i * i + j * j) * cop; ^~~