Compilare: user.c: In function ‘main’: user.c:82:4: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if(nr=k){ ^ user.c:26:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(infile, "%d %d", &n, &k); ^ user.c:34:16: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] int x; fscanf(infile, "%d", &x); ^