View Compilation Error

0_0_33798787_14069.cpp: In function 'void Poly::Mul(int*, int*, int*, int, int)':
0_0_33798787_14069.cpp:76:58: error: invalid operands of types 'double' and 'const int' to binary 'operator%'
             ac = ((a[i].x + b[i].x) / 2.0 + 0.5) * mod % p * mod % p;
                                                          ^
0_0_33798787_14069.cpp:77:58: error: invalid operands of types 'double' and 'const int' to binary 'operator%'
             ad = ((a[i].y + b[i].y) / 2.0 + 0.5) * mod % p;
                                                          ^
0_0_33798787_14069.cpp:78:58: error: invalid operands of types 'double' and 'const int' to binary 'operator%'
             bc = ((a[i].y - b[i].y) / 2.0 + 0.5) * mod % p;
                                                          ^
0_0_33798787_14069.cpp:79:52: error: invalid operands of types 'double' and 'const int' to binary 'operator%'
             bd = ((b[i].x - a[i].x) / 2.0 + 0.5) % p;
                                                    ^