alkemija.c: In function 'append':
alkemija.c:12:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
12 | if (g >= 2 && (g & g - 1) == 0)
| ~~^~~
alkemija.c: In function 'main':
alkemija.c:45:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
45 | scanf("%d%d", &n, &m);
| ^~~~~~~~~~~~~~~~~~~~~
alkemija.c:47:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
47 | scanf("%d", &i), i--;
| ^~~~~~~~~~~~~~~
alkemija.c:52:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
52 | scanf("%d", &k);
| ^~~~~~~~~~~~~~~
alkemija.c:54:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
54 | scanf("%d%d", &m, &nn[h]);
| ^~~~~~~~~~~~~~~~~~~~~~~~~
alkemija.c:57:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
57 | scanf("%d", &i), i--;
| ^~~~~~~~~~~~~~~
alkemija.c:62:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
62 | scanf("%d", &ii[h][i]), ii[h][i]--;
| ^~~~~~~~~~~~~~~~~~~~~~