View Compilation Error

0_0_33160700_25031.cpp: In function 'int get_circle_circle_intersection(Circle, Circle, std::vector<Point>&)':
0_0_33160700_25031.cpp:78:8: error: expected primary-expression before '%' token
  if(p1=%3
        ^
0_0_33160700_25031.cpp:78:9: error: expected ')' at end of input
  if(p1=%3
         ^
0_0_33160700_25031.cpp:78:9: error: expected statement at end of input
0_0_33160700_25031.cpp:78:9: error: expected '}' at end of input