View Compilation Error

0_0_39140789_3960.cpp:30:24: error: 'v' is not a type
   30 |                 memset(v, 0, sizeof(v));
      |                        ^
0_0_39140789_3960.cpp:30:27: error: expected identifier before numeric constant
   30 |                 memset(v, 0, sizeof(v));
      |                           ^
0_0_39140789_3960.cpp:30:27: error: expected ',' or '...' before numeric constant