Compilare: main.cpp: In function 'int swp(int&, int&)': main.cpp:30:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int partition(int, int, int*)': main.cpp:33:6: warning: unused variable 's' [-Wunused-variable] int s = mid(left, right, arr); ^ main.cpp: In function 'int mid(int, int, int*)': main.cpp:23:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int kel(int, int, int*, int)': main.cpp:59:1: warning: control reaches end of non-void function [-Wreturn-type] } ^