Compilare: main.c: In function 'main': main.c:20:17: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'long long int *' [-Wformat=] scanf("%d",&d[i].v),q[0][i]=i; ^ main.c:18:5: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] freopen("huffman.in","r",stdin),freopen("huffman.out","w",stdout),scanf("%d",&n); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:18:37: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] freopen("huffman.in","r",stdin),freopen("huffman.out","w",stdout),scanf("%d",&n); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:18:71: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] freopen("huffman.in","r",stdin),freopen("huffman.out","w",stdout),scanf("%d",&n); ^~~~~~~~~~~~~~ main.c:20:9: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&d[i].v),q[0][i]=i; ^~~~~~~~~~~~~~~~~~~