View Compilation Error

0_0_25326577_11330.cpp: In function 'int main()':
0_0_25326577_11330.cpp:14:14: error: 'n' was not declared in this scope
         cin>>n>>v;
              ^
0_0_25326577_11330.cpp:14:17: error: 'v' was not declared in this scope
         cin>>n>>v;
                 ^
0_0_25326577_11330.cpp:26:13: error: 'j' was not declared in this scope
         for(j=0;j<=v;j++)
             ^