Compilare: main.c: In function 'c_2': main.c:23:5: warning: implicit declaration of function 'qsort' [-Wimplicit-function-declaration] qsort(v_initial, n, sizeof(int), cmp); ^~~~~ main.c: In function 'main': main.c:38:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d",&cerinta,&n,&k); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:41:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&v_initial[i]); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~