Compilare: user.cpp: In function ‘int main()’: user.cpp:75:14: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if(numar[i]&1==1) ^ user.cpp:64:6: warning: unused variable ‘a’ [-Wunused-variable] int a,b; ^ user.cpp:64:8: warning: unused variable ‘b’ [-Wunused-variable] int a,b; ^ user.cpp:60:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ciclueuler.in","r",stdin); ^ user.cpp:61:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ciclueuler.out","w",stdout); ^ user.cpp:62:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&nod,&muc); ^ user.cpp:68:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&v[i].x,&v[i].y); ^