Compilare: main.cpp: In function 'void precalc()': main.cpp:17:19: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 17 | for (i = 1; i <= n; i++) | ~~^~~~ main.cpp:20:23: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 20 | for (j = 1; j <= n - (1 << (i - 1)) + 1; j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:43:30: warning: unused variable 'k' [-Wunused-variable] 43 | unsigned long long i, j, k, p = 0, ax, ay, ps = 0, f2 = 0; | ^ main.cpp:43:40: warning: unused variable 'ax' [-Wunused-variable] 43 | unsigned long long i, j, k, p = 0, ax, ay, ps = 0, f2 = 0; | ^~ main.cpp:43:44: warning: unused variable 'ay' [-Wunused-variable] 43 | unsigned long long i, j, k, p = 0, ax, ay, ps = 0, f2 = 0; | ^~