Compilare: main.cpp: In function 'void euclid1(int, int, int&, int&, int&)': main.cpp:8:9: warning: unused variable 'c' [-Wunused-variable] int c,x1,x2,y1,y2; ^ main.cpp:8:11: warning: variable 'x1' set but not used [-Wunused-but-set-variable] int c,x1,x2,y1,y2; ^~ main.cpp:8:14: warning: variable 'x2' set but not used [-Wunused-but-set-variable] int c,x1,x2,y1,y2; ^~ main.cpp:8:17: warning: variable 'y1' set but not used [-Wunused-but-set-variable] int c,x1,x2,y1,y2; ^~ main.cpp:8:20: warning: variable 'y2' set but not used [-Wunused-but-set-variable] int c,x1,x2,y1,y2; ^~ main.cpp: In function 'int invmod(int, int)': main.cpp:47:8: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized] x%=j; ^ main.cpp: In function 'int combinatii(int&, int&)': main.cpp:47:8: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized] x%=j; ^ main.cpp:45:9: note: 'x' was declared here int x,y,d; ^