View Compilation Error

0_0_37744468_20451.cpp: In function 'void addedge(int, int, int, int)':
0_0_37744468_20451.cpp:38:4: error: 'cnt' was not declared in this scope
  e[cnt].v=v;
    ^
0_0_37744468_20451.cpp:40:11: error: 'h' was not declared in this scope
  e[cnt].h=h;
           ^
0_0_37744468_20451.cpp: In function 'int main()':
0_0_37744468_20451.cpp:48:3: error: 'cnt' was not declared in this scope
   cnt=0;
   ^