View Compilation Error

0_0_22048894_6962.cpp: In function 'int main()':
0_0_22048894_6962.cpp:99:16: error: 'll' was not declared in this scope
    sum1=sum1+ (ll) max(0,ans-height[i+1]);
                ^
0_0_22048894_6962.cpp:106:16: error: 'll' was not declared in this scope
    sum2=sum2+ (ll) max(0,ans-height[i+1]);
                ^