View Compilation Error

In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/cstdlib:72:0,
                 from 0_0_13867416_31186.cpp:3:
0_0_13867416_31186.cpp: In function 'int main()':
0_0_13867416_31186.cpp:45:43: error: invalid operands of types 'double' and 'int' to binary 'operator%'
             if (SUM<sum || (double)rand()%RAND_MAX<exp((sum-SUM)/(SUM+0.0))*T/(Q+0.0)) ANS=min(ANS,SUM); else swap(p[X],p[Y]);
                                           ^