Compilare: main.cpp: In function 'void quicksort(unsigned int*, unsigned int, unsigned int)': main.cpp:9:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(p[i]<pivot) ~~~~^~~~~~ main.cpp:11:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(p[j]>pivot) ~~~~^~~~~~ main.cpp:19:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(left<j) ~~~~^~ main.cpp:21:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(right>i) ~~~~~^~ main.cpp: In function 'int main()': main.cpp:27:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&n,&s); ^ main.cpp:30:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&p[i]); ^