View Compilation Error

0_0_15970320_8546.cpp: In function 'int main()':
0_0_15970320_8546.cpp:50:5: error: redeclaration of 'int d'
 int d,u,v;
     ^
0_0_15970320_8546.cpp:34:11: note: 'int d' previously declared here
 int t,n,h,d;
           ^
0_0_15970320_8546.cpp: At global scope:
0_0_15970320_8546.cpp:66:1: error: expected unqualified-id before 'return'
 return 0;}
 ^
0_0_15970320_8546.cpp:66:10: error: expected declaration before '}' token
 return 0;}
          ^