Compilare: main.cpp: In function 'int main()': main.cpp:4:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] int main(){freopen("ejoc.in" ,"r",stdin);freopen("ejoc.out","w",stdout);long long t,a,b;scanf("%lld",&t);for(int i=1;i<=t;i++){scanf("%lld%lld",&a,&b);std::max(a,b)/std::__gcd(a,b)%2?printf("Dalila\n"):printf("Denisa\n");} ^ main.cpp:4:72: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] int main(){freopen("ejoc.in" ,"r",stdin);freopen("ejoc.out","w",stdout);long long t,a,b;scanf("%lld",&t);for(int i=1;i<=t;i++){scanf("%lld%lld",&a,&b);std::max(a,b)/std::__gcd(a,b)%2?printf("Dalila\n"):printf("Denisa\n");} ^ main.cpp:4:105: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] int main(){freopen("ejoc.in" ,"r",stdin);freopen("ejoc.out","w",stdout);long long t,a,b;scanf("%lld",&t);for(int i=1;i<=t;i++){scanf("%lld%lld",&a,&b);std::max(a,b)/std::__gcd(a,b)%2?printf("Dalila\n"):printf("Denisa\n");} ^ main.cpp:4:151: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] int main(){freopen("ejoc.in" ,"r",stdin);freopen("ejoc.out","w",stdout);long long t,a,b;scanf("%lld",&t);for(int i=1;i<=t;i++){scanf("%lld%lld",&a,&b);std::max(a,b)/std::__gcd(a,b)%2?printf("Dalila\n"):printf("Denisa\n");} ^