Compilare: user.cpp: In function ‘int main()’: user.cpp:162: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:180: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:199: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:217: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:238: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:259: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:61: warning: unused variable ‘p’ user.cpp:98: warning: unused variable ‘ok’ user.cpp:57: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:58: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:64: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:65: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:81: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:84: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:61: warning: ‘cx’ may be used uninitialized in this function user.cpp:61: warning: ‘cy’ may be used uninitialized in this function