View Compilation Error

0_0_29930081_15951.cpp: In function 'int main()':
0_0_29930081_15951.cpp:9:27: error: 'cin' was not declared in this scope
      for(int i=0;i<=n;i++)cin>>l[i]; 
                           ^
0_0_29930081_15951.cpp:10:24: error: 'cin' was not declared in this scope
   for(int i=0;i<=n;i++)cin>>s[i];
                        ^
0_0_29930081_15951.cpp:11:24: error: 'cin' was not declared in this scope
   for(int i=0;i<=n;i++)cin>>v[i];
                        ^