View Compilation Error

0_0_13833154_8456.c: In function 'main':
0_0_13833154_8456.c:27:18: error: expected expression before '/' token
    if(ri != rj)  //否则已连接 
                  ^
0_0_13833154_8456.c:27:18: error: stray '\267' in program
0_0_13833154_8456.c:27:18: error: stray '\361' in program
0_0_13833154_8456.c:27:18: error: stray '\324' in program
0_0_13833154_8456.c:27:18: error: stray '\362' in program
0_0_13833154_8456.c:27:18: error: stray '\322' in program
0_0_13833154_8456.c:27:18: error: stray '\321' in program
0_0_13833154_8456.c:27:18: error: stray '\301' in program
0_0_13833154_8456.c:27:18: error: stray '\254' in program
0_0_13833154_8456.c:27:18: error: stray '\275' in program
0_0_13833154_8456.c:27:18: error: stray '\323' in program
0_0_13833154_8456.c: In function 'unions':
0_0_13833154_8456.c:43:24: error: expected expression before '/' token
  if(set[r2]<set[r1]){  //r2 is deeper  
                        ^