View Compilation Error

0_0_19185080_21837.cpp: In function 'int main()':
0_0_19185080_21837.cpp:49:13: error: redeclaration of 'int d'
         int d,u,v;
             ^
0_0_19185080_21837.cpp:33:15: note: 'int d' previously declared here
     int t,n,h,d;
               ^
0_0_19185080_21837.cpp: At global scope:
0_0_19185080_21837.cpp:65:5: error: expected unqualified-id before 'return'
     return 0;
     ^
0_0_19185080_21837.cpp:66:1: error: expected declaration before '}' token
 }
 ^