View Compilation Error

0_0_34307192_21601.cpp: In function 'int main()':
0_0_34307192_21601.cpp:7:2: error: 'e' was not declared in this scope
  e=sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1));
  ^
0_0_34307192_21601.cpp: At global scope:
0_0_34307192_21601.cpp:10:2: error: expected unqualified-id before 'return'
  return 0;
  ^
0_0_34307192_21601.cpp:11:2: error: expected declaration before '}' token
  } 
  ^