Compilare: user.cpp: In function ‘void solve()’: user.cpp:22: warning: unused variable ‘p’ user.cpp: In function ‘int main()’: user.cpp:51: warning: format ‘%d’ expects type ‘int*’, but argument 2 has type ‘short int*’ user.cpp:48: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:49: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:51: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:56: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result