View Compilation Error

0_0_33329298_1221.cpp: In function 'void work()':
0_0_33329298_1221.cpp:66:3: error: 'v' was not declared in this scope
   v[i].s=q[i],v[i].t=q[i+1];
   ^
0_0_33329298_1221.cpp:66:10: error: 'q' was not declared in this scope
   v[i].s=q[i],v[i].t=q[i+1];
          ^
0_0_33329298_1221.cpp:90:6: error: redeclaration of 'int ba'
  int ba=0,fr=1;
      ^
0_0_33329298_1221.cpp:73:6: note: 'int ba' previously declared here
  int ba=0,fr=1;
      ^
0_0_33329298_1221.cpp:90:11: error: redeclaration of 'int fr'
  int ba=0,fr=1;
           ^
0_0_33329298_1221.cpp:73:11: note: 'int fr' previously declared here
  int ba=0,fr=1;
           ^