View Compilation Error

0_0_25481721_10922.cpp: In function 'int main()':
0_0_25481721_10922.cpp:33:9: error: 'll' was not declared in this scope
         ll sum = 0;
         ^
0_0_25481721_10922.cpp:37:13: error: 'sum' was not declared in this scope
             sum += i - Sum(a[i] + 1);
             ^
0_0_25481721_10922.cpp:39:26: error: 'res' was not declared in this scope
         printf("%lld\n", res*min(x,y));
                          ^