Compilare: main.c: In function 'main': main.c:14:7: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(k%2&&n%2==0) ^ main.c:5:5: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] freopen("tablete.in","r",stdin),freopen("tablete.out","w",stdout),scanf("%d%d",&n,&k); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:5:37: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] freopen("tablete.in","r",stdin),freopen("tablete.out","w",stdout),scanf("%d%d",&n,&k); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:5:71: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] freopen("tablete.in","r",stdin),freopen("tablete.out","w",stdout),scanf("%d%d",&n,&k); ^~~~~~~~~~~~~~~~~~~