View Compilation Error

0_0_30307689_25888.cpp: In function 'void merge(int, int)':
0_0_30307689_25888.cpp:93:29: error: invalid operands of types 'int(int)' and 'int(int)' to binary 'operator^'
   dis[tx] = dist[x] ^ dist[y] ^ 1;
                             ^