Compilare: user.cpp: In function ‘int get(int, int, int)’: user.cpp:9: warning: suggest parentheses around ‘-’ inside ‘<<’ user.cpp:10: warning: suggest parentheses around ‘-’ inside ‘<<’ user.cpp:10: warning: suggest parentheses around ‘-’ inside ‘<<’ user.cpp:10: warning: suggest parentheses around ‘-’ inside ‘<<’ user.cpp:11: warning: suggest parentheses around ‘-’ inside ‘<<’ user.cpp:11: warning: suggest parentheses around ‘-’ inside ‘<<’ user.cpp:11: warning: suggest parentheses around ‘-’ inside ‘<<’ user.cpp: In function ‘int main()’: user.cpp:18: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:24: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result