oak.cpp: In function 'int main()': oak.cpp:43: warning: unused variable 'n' oak.cpp:43: warning: unused variable 'm' oak.cpp:43: warning: unused variable 'i' oak.cpp:43: warning: unused variable 'j' oak.cpp:43: warning: unused variable 'q' oak.cpp:43: warning: unused variable 'nr' oak.cpp:43: warning: unused variable 'minim' oak.cpp:43: warning: unused variable 'maxim' oak.cpp:43: warning: unused variable 'suma' oak.cpp:43: warning: unused variable 'tmax' oak.cpp:43: warning: unused variable 'st' oak.cpp:43: warning: unused variable 'dr' oak.cpp:43: warning: unused variable 'mij' oak.cpp:43: warning: unused variable 'e'