psp.cpp: In function 'int main()': psp.cpp:8: warning: unused variable 'c1' psp.cpp:8: warning: unused variable 'c2' psp.cpp:8: warning: unused variable 'c3' psp.cpp:8: warning: unused variable 'b' psp.cpp:8: warning: unused variable 'f' psp.cpp:8: warning: unused variable 'maxi' psp.cpp:8: warning: unused variable 'p' psp.cpp:8: warning: unused variable 'x' psp.cpp:8: warning: unused variable 'nr' psp.cpp:8: warning: unused variable 'd' psp.cpp:8: warning: unused variable 'uc'