Compilare: user.cpp: In function ‘int main()’: user.cpp:90:15: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] cuv[z]=NULL; ^ user.cpp:38:15: warning: unused variable ‘l’ [-Wunused-variable] int i,j,k,l,m,z,ok,p,ua,d,w,e=0,q,u,o,aux,t,b,adunare,r,ad,add; ^ user.cpp:38:17: warning: unused variable ‘m’ [-Wunused-variable] int i,j,k,l,m,z,ok,p,ua,d,w,e=0,q,u,o,aux,t,b,adunare,r,ad,add; ^ user.cpp:38:24: warning: unused variable ‘p’ [-Wunused-variable] int i,j,k,l,m,z,ok,p,ua,d,w,e=0,q,u,o,aux,t,b,adunare,r,ad,add; ^ user.cpp:38:26: warning: unused variable ‘ua’ [-Wunused-variable] int i,j,k,l,m,z,ok,p,ua,d,w,e=0,q,u,o,aux,t,b,adunare,r,ad,add; ^ user.cpp:38:29: warning: unused variable ‘d’ [-Wunused-variable] int i,j,k,l,m,z,ok,p,ua,d,w,e=0,q,u,o,aux,t,b,adunare,r,ad,add; ^ user.cpp:38:31: warning: unused variable ‘w’ [-Wunused-variable] int i,j,k,l,m,z,ok,p,ua,d,w,e=0,q,u,o,aux,t,b,adunare,r,ad,add; ^ user.cpp:38:37: warning: unused variable ‘q’ [-Wunused-variable] int i,j,k,l,m,z,ok,p,ua,d,w,e=0,q,u,o,aux,t,b,adunare,r,ad,add; ^ user.cpp:38:39: warning: unused variable ‘u’ [-Wunused-variable] int i,j,k,l,m,z,ok,p,ua,d,w,e=0,q,u,o,aux,t,b,adunare,r,ad,add; ^ user.cpp:38:41: warning: unused variable ‘o’ [-Wunused-variable] int i,j,k,l,m,z,ok,p,ua,d,w,e=0,q,u,o,aux,t,b,adunare,r,ad,add; ^ user.cpp:38:43: warning: unused variable ‘aux’ [-Wunused-variable] int i,j,k,l,m,z,ok,p,ua,d,w,e=0,q,u,o,aux,t,b,adunare,r,ad,add; ^ user.cpp:38:47: warning: unused variable ‘t’ [-Wunused-variable] int i,j,k,l,m,z,ok,p,ua,d,w,e=0,q,u,o,aux,t,b,adunare,r,ad,add; ^ user.cpp:38:51: warning: unused variable ‘adunare’ [-Wunused-variable] int i,j,k,l,m,z,ok,p,ua,d,w,e=0,q,u,o,aux,t,b,adunare,r,ad,add; ^ user.cpp:38:59: warning: unused variable ‘r’ [-Wunused-variable] int i,j,k,l,m,z,ok,p,ua,d,w,e=0,q,u,o,aux,t,b,adunare,r,ad,add; ^ user.cpp:40:9: warning: unused variable ‘y’ [-Wunused-variable] int y=0; ^