Compilare: user.cpp: In function ‘int main()’: user.cpp:17:23: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(sir[i]==49 && par%2==0||(sir[i]==48 && par%2==1)){ ^ user.cpp:7:10: warning: variable ‘ok’ set but not used [-Wunused-but-set-variable] bool ok=1; ^ user.cpp:8:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("paritate.in","r",stdin); ^ user.cpp:9:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("paritate.out","w",stdout); ^ user.cpp:10:14: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(sir); ^ /tmp/ccLQEFb6.o: In function `main': user.cpp:(.text.startup+0x56): warning: the `gets' function is dangerous and should not be used.