View Compilation Error

0_0_14586293_20381.cpp: In function 'int main()':
0_0_14586293_20381.cpp:78:23: error: 'v' was not declared in this scope
   memset(vis,0,sizeof v
                       ^
0_0_14586293_20381.cpp:78:23: error: expected '}' at end of input
0_0_14586293_20381.cpp:78:23: error: expected '}' at end of input