Compilare: main.cpp: In function 'void citire()': main.cpp:37:11: warning: unused variable 'x' [-Wunused-variable] 37 | { int i,x,y,c; | ^ main.cpp:37:13: warning: unused variable 'y' [-Wunused-variable] 37 | { int i,x,y,c; | ^ main.cpp:37:15: warning: unused variable 'c' [-Wunused-variable] 37 | { int i,x,y,c; | ^ main.cpp: In function 'int Union(int, int)': main.cpp:77:1: warning: no return statement in function returning non-void [-Wreturn-type] 77 | } | ^