Compilare: user.cpp: In function 'int main()': user.cpp:50: warning: comparison between signed and unsigned integer expressions user.cpp:55: warning: comparison between signed and unsigned integer expressions user.cpp:56: warning: comparison between signed and unsigned integer expressions user.cpp:78: warning: format '%d' expects type 'int*', but argument 2 has type 'int' user.cpp:22: warning: unused variable 'x' user.cpp:22: warning: unused variable 'y' user.cpp:22: warning: unused variable 's1' user.cpp:22: warning: unused variable 's2' user.cpp:22: warning: unused variable 'st' user.cpp:22: warning: unused variable 'n' user.cpp:22: warning: 'cur' may be used uninitialized in this function