Compilare: user.cpp: In function ‘int main()’: user.cpp:22:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<=strlen(s)-1;j++) ^ user.cpp:15:15: warning: unused variable ‘h’ [-Wunused-variable] int n,i,j,h,k1,k2,max1,max2,ok; ^ user.cpp:15:17: warning: unused variable ‘k1’ [-Wunused-variable] int n,i,j,h,k1,k2,max1,max2,ok; ^ user.cpp:15:20: warning: unused variable ‘k2’ [-Wunused-variable] int n,i,j,h,k1,k2,max1,max2,ok; ^ user.cpp:15:23: warning: unused variable ‘max1’ [-Wunused-variable] int n,i,j,h,k1,k2,max1,max2,ok; ^ user.cpp:15:28: warning: unused variable ‘max2’ [-Wunused-variable] int n,i,j,h,k1,k2,max1,max2,ok; ^ /tmp/cci57SJz.o: In function `main': user.cpp:(.text.startup+0x77): warning: the `gets' function is dangerous and should not be used.