View Compilation Error

0_0_37856295_7009.cpp:3:9: error: 'll' does not name a type
 typedef ll = long long;
         ^
0_0_37856295_7009.cpp: In function 'void solve()':
0_0_37856295_7009.cpp:46:5: error: 'll' was not declared in this scope
     ll ans = 0;
     ^
0_0_37856295_7009.cpp:53:13: error: 'ans' was not declared in this scope
             ans += i;
             ^
0_0_37856295_7009.cpp:58:22: error: 'ans' was not declared in this scope
     printf("%lld\n", ans);
                      ^
0_0_37856295_7009.cpp: In function 'int main()':
0_0_37856295_7009.cpp:62:18: error: 'read' was not declared in this scope
     int T; read(T);
                  ^