Compilare: user.cpp: In function ‘int main()’: user.cpp:10:17: warning: ‘c2’ may be used uninitialized in this function [-Wmaybe-uninitialized] char x,y,c1,c2,c; ^~ user.cpp:10:14: warning: ‘c1’ may be used uninitialized in this function [-Wmaybe-uninitialized] char x,y,c1,c2,c; ^~ user.cpp:9:13: warning: ‘p’ may be used uninitialized in this function [-Wmaybe-uninitialized] int n,i,p; ^