Compilare: user.cpp: In function ‘int main()’: user.cpp:51:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<strlen(ch);j++) ^ user.cpp:81:21: warning: ‘sjy’ may be used uninitialized in this function [-Wmaybe-uninitialized] lee(ju,sjx,sjy); ^ user.cpp:81:21: warning: ‘sjx’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:79:21: warning: ‘sry’ may be used uninitialized in this function [-Wmaybe-uninitialized] lee(ro,srx,sry); ^ user.cpp:79:21: warning: ‘srx’ may be used uninitialized in this function [-Wmaybe-uninitialized]