Compilare: user.cpp: In function ‘int main()’: user.cpp:26:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=2;i<=strlen(x[h]+1);i++) ^ user.cpp:35:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=strlen(a+1);i++) ^ user.cpp:42:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(k==strlen(x[h]+1)) ^ user.cpp:47:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(k+d<strlen(x[h]+1)) ^ user.cpp:51:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=strlen(a+1);i++) ^