Compilare: user.cpp: In function ‘int main()’: user.cpp:31:53: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(dmin>max(max(s2,s3),s1)-min(min(s2,s3),s1)){ ^ user.cpp:42:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(d1min>max(s2,s3)-min(s2,s3)) ^ user.cpp:44:57: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(dmin>max(max(s2,s3),s1)-min(min(s2,s3),s1)){ ^ user.cpp:16:20: warning: unused variable ‘j’ [-Wunused-variable] register int i,j,ok; ^