View Compilation Error

0_0_21736966_629.cpp:26:1: error: 'll' does not name a type
 ll ans;
 ^
0_0_21736966_629.cpp: In function 'int main()':
0_0_21736966_629.cpp:47:9: error: 'll' was not declared in this scope
         ll t1=0,t2=0;
         ^
0_0_21736966_629.cpp:50:25: error: 't1' was not declared in this scope
             if(p[i].up) t1+=p[i].v;
                         ^
0_0_21736966_629.cpp:51:14: error: 't2' was not declared in this scope
         else t2+=p[i].v;
              ^
0_0_21736966_629.cpp:52:9: error: 'ans' was not declared in this scope
         ans=t1*t2;
         ^
0_0_21736966_629.cpp:52:13: error: 't1' was not declared in this scope
         ans=t1*t2;
             ^
0_0_21736966_629.cpp:52:16: error: 't2' was not declared in this scope
         ans=t1*t2;
                ^