Compilare: user.cpp: In function ‘int main()’: user.cpp:48:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0;j<strlen(s);j++) ^ user.cpp:51:9: warning: unused variable ‘l’ [-Wunused-variable] int l[n*m+1]; ^ user.cpp:52:9: warning: unused variable ‘c’ [-Wunused-variable] int c[n*m+1]; ^ user.cpp:53:9: warning: unused variable ‘ar’ [-Wunused-variable] int ar[n*m+1]; ^ user.cpp:54:17: warning: unused variable ‘k’ [-Wunused-variable] int x,y,w,z,k=0,t,q,l1,l2,c1,c2,arie,maxim,nr; ^ user.cpp:54:34: warning: ‘c2’ may be used uninitialized in this function [-Wmaybe-uninitialized] int x,y,w,z,k=0,t,q,l1,l2,c1,c2,arie,maxim,nr; ^ user.cpp:54:31: warning: ‘c1’ may be used uninitialized in this function [-Wmaybe-uninitialized] int x,y,w,z,k=0,t,q,l1,l2,c1,c2,arie,maxim,nr; ^ user.cpp:101:25: warning: ‘l2’ may be used uninitialized in this function [-Wmaybe-uninitialized] for (z=l1;z<=l2;z++) ^ user.cpp:54:25: warning: ‘l1’ may be used uninitialized in this function [-Wmaybe-uninitialized] int x,y,w,z,k=0,t,q,l1,l2,c1,c2,arie,maxim,nr; ^