View Compilation Error

0_0_30756445_28127.cpp: In function 'int main()':
0_0_30756445_28127.cpp:22:3: error: expected ';' before 'int'
   int u,v,cost;
   ^
0_0_30756445_28127.cpp:25:9: error: 'u' was not declared in this scope
    cin>>u>>v>>cost;
         ^
0_0_30756445_28127.cpp:25:12: error: 'v' was not declared in this scope
    cin>>u>>v>>cost;
            ^
0_0_30756445_28127.cpp:25:15: error: 'cost' was not declared in this scope
    cin>>u>>v>>cost;
               ^