View Compilation Error

0_0_32335478_8769.cpp:1:1: error: expected unqualified-id before 'for'
 for(int i=0;i<v[x].size();i++)
 ^
0_0_32335478_8769.cpp:1:13: error: 'i' does not name a type
 for(int i=0;i<v[x].size();i++)
             ^
0_0_32335478_8769.cpp:1:27: error: 'i' does not name a type
 for(int i=0;i<v[x].size();i++)
                           ^