secvnumber.cpp: In function 'void init()': secvnumber.cpp:66: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result secvnumber.cpp: In function 'void solve()': secvnumber.cpp:76: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result secvnumber.cpp:80: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result secvnumber.cpp:84: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result secvnumber.cpp: In function 'int main()': secvnumber.cpp:91: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result secvnumber.cpp:92: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result secvnumber.cpp:93: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result