View Compilation Error

0_0_25954696_8880.cpp: In function 'void join(int, int, int, int)':
0_0_25954696_8880.cpp:22:1: error: expected ';' before '}' token
 }
 ^
0_0_25954696_8880.cpp: In function 'int main()':
0_0_25954696_8880.cpp:45:19: error: expected ';' before 'scanf'
     else  flag==4 scanf("%d%d%d",&u,&x,&y);
                   ^