0_0_30276421_2783.cpp: In function 'int main()': 0_0_30276421_2783.cpp:15:9: error: 'll' was not declared in this scope ll ans=1ll*n*y; ^ 0_0_30276421_2783.cpp:16:21: error: 'ans' was not declared in this scope cout<<k+mod+ans<<endl; ^