View Compilation Error

0_0_26910332_19046.cpp: In function 'int main()':
0_0_26910332_19046.cpp:52:16: error: 'sf' was not declared in this scope
     sf("%d",&tc);
                ^
0_0_26910332_19046.cpp:55:9: error: 'LL' was not declared in this scope
         LL ans = 0;
         ^
0_0_26910332_19046.cpp:61:34: error: 'ans' was not declared in this scope
                 if(arr[i][j]!=0) ans++;
                                  ^
0_0_26910332_19046.cpp:69:17: error: 'ans' was not declared in this scope
                 ans += abs(cur-arr[i][j]);
                 ^
0_0_26910332_19046.cpp:72:13: error: 'ans' was not declared in this scope
             ans += cur;
             ^
0_0_26910332_19046.cpp:78:17: error: 'ans' was not declared in this scope
                 ans += abs(cur-arr[i][j]);
                 ^
0_0_26910332_19046.cpp:81:13: error: 'ans' was not declared in this scope
             ans += cur;
             ^
0_0_26910332_19046.cpp:84:21: error: 'ans' was not declared in this scope
         pf("%lld\n",ans);
                     ^
0_0_26910332_19046.cpp:84:24: error: 'pf' was not declared in this scope
         pf("%lld\n",ans);
                        ^