Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:12:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=T;i+2) ^ user.cpp:12:23: warning: for increment expression has no effect [-Wunused-value] for(int i=1;i<=T;i+2) ^ user.cpp:14:13: error: ‘i’ was not declared in this scope while(a[i]!=a[i+1]) ^ user.cpp:20:11: error: ‘i’ was not declared in this scope } for(i=1;i<=t;i++) ^ user.cpp:20:18: error: ‘t’ was not declared in this scope } for(i=1;i<=t;i++) ^