Compilare: main.cpp: In function 'int main()': main.cpp:69:23: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 69 | if ( sol != 0 && ( v[sol].x + 1 == xstp && v[sol].y <= ystp ) || ( xstp == xstr ) || ( v[sol].x == xstp && v[sol].y <= ystp ) ) | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:23:74: warning: variable 'ok' set but not used [-Wunused-but-set-variable] 23 | int r, c, n, t, sol, i, j, st, dr, mij, xstr, ystr, xstp, ystp, dif, ok; | ^~ main.cpp:47:17: warning: iteration 200000 invokes undefined behavior [-Waggressive-loop-optimizations] 47 | logg[i] = logg[i / 2] + 1; | ~~~~~~~~^~~~~~~~~~~~~~~~~ main.cpp:46:20: note: within this loop 46 | for ( i = 2; i <= nmax; i++ ) | ^