Compilare: main.c: In function 'sort': main.c:29:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.c: In function 'main': main.c:34:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&n,&k); ^~~~~~~~~~~~~~~~~~~~~~~~ main.c:36:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&v[i]); ^~~~~~~~~~~~~~~~~~~~~~