Accepted
/in/foo.cc: In function 'void quicksort(long long int, long long int)': /in/foo.cc:7:12: warning: unused variable 'n' [-Wunused-variable] long long n,i,j,temp,t; ^ /in/foo.cc: In function 'int main()': /in/foo.cc:34:20: warning: unused variable 'k' [-Wunused-variable] long long n,i,t=1,k=0; ^