Compilare: user.c: In function ‘flip’: user.c:12:9: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if(caz & 1 == 1) { ^ user.c: In function ‘main’: user.c:48:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d", &n, &m); ^ user.c:52:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &v[i][j]); ^