Compilare: user.cpp: In function ‘int parcurgere()’: user.cpp:42:11: warning: unused variable ‘c’ [-Wunused-variable] int a,c=x,d=y,i,r; ^ user.cpp:42:15: warning: unused variable ‘d’ [-Wunused-variable] int a,c=x,d=y,i,r; ^ user.cpp:42:21: warning: unused variable ‘r’ [-Wunused-variable] int a,c=x,d=y,i,r; ^ user.cpp: In function ‘void dfs(int, int)’: user.cpp:56:9: warning: unused variable ‘r’ [-Wunused-variable] int r,i,j; ^ user.cpp:56:11: warning: unused variable ‘i’ [-Wunused-variable] int r,i,j; ^ user.cpp:56:13: warning: unused variable ‘j’ [-Wunused-variable] int r,i,j; ^ user.cpp: In function ‘int main()’: user.cpp:83:13: warning: unused variable ‘t’ [-Wunused-variable] int i,j,t=0,r; ^ user.cpp:83:17: warning: unused variable ‘r’ [-Wunused-variable] int i,j,t=0,r; ^