Compilare: user.cpp:7: warning: suggest parentheses around ‘-’ inside ‘<<’ user.cpp: In function ‘int gasire(long long int)’: user.cpp:13: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result