View Compilation Error

0_0_39093574_19541.cpp: In function 'int main()':
0_0_39093574_19541.cpp:7:5: error: expected initializer before 'int'
    7 |     int a, sum;
      |     ^~~
0_0_39093574_19541.cpp:11:9: error: 'sum' was not declared in this scope
   11 |         sum = 0;
      |         ^~~
0_0_39093574_19541.cpp:12:16: error: 'i' was not declared in this scope
   12 |         cin >> i;
      |                ^
0_0_39093574_19541.cpp:15:20: error: 'a' was not declared in this scope
   15 |             cin >> a;
      |                    ^