View Compilation Error

0_0_31223118_1318.cpp: In function 'int main()':
0_0_31223118_1318.cpp:6:12: error: lvalue required as left operand of assignment
  if (a=0&&b=0);
            ^
0_0_31223118_1318.cpp:7:2: error: break statement not within loop or switch
  break;
  ^