nrcuv2.cpp: In member function 'int Mare::zero()': nrcuv2.cpp:207: warning: suggest parentheses around '&&' within '||' nrcuv2.cpp: In member function 'void Mare::radical_normal(Mare&, int)': nrcuv2.cpp:402: warning: suggest parentheses around '&&' within '||' nrcuv2.cpp: In function 'int main()': nrcuv2.cpp:443: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result nrcuv2.cpp:444: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result nrcuv2.cpp:446: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result