/in/foo.cc: In function 'int main()':
/in/foo.cc:6:1: error: 'f' was not declared in this scope
 f[1005],w[1005],v[1005],n,t;
 ^
/in/foo.cc:6:9: error: 'w' was not declared in this scope
 f[1005],w[1005],v[1005],n,t;
         ^
/in/foo.cc:6:17: error: 'v' was not declared in this scope
 f[1005],w[1005],v[1005],n,t;
                 ^
/in/foo.cc:6:25: error: 'n' was not declared in this scope
 f[1005],w[1005],v[1005],n,t;
                         ^
/in/foo.cc:6:27: error: 't' was not declared in this scope
 f[1005],w[1005],v[1005],n,t;
                           ^