dreptc.cpp: In function 'int myqsort(int, int, int*)': dreptc.cpp:23: warning: no return statement in function returning non-void dreptc.cpp: In function 'int main()': dreptc.cpp:27: warning: unused variable 'a' dreptc.cpp:27: warning: unused variable 'b' dreptc.cpp:27: warning: unused variable 'dr' dreptc.cpp:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result dreptc.cpp:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result