View Compilation Error

0_0_10972644_10696.cpp: In function `int main()':
0_0_10972644_10696.cpp:4: error: expected init-declarator before '.' token
0_0_10972644_10696.cpp:4: error: expected `,' or `;' before '.' token
0_0_10972644_10696.cpp:7: error: `num' undeclared (first use this function)
0_0_10972644_10696.cpp:7: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_10972644_10696.cpp:12: error: `i' undeclared (first use this function)
0_0_10972644_10696.cpp:14: error: `a' undeclared (first use this function)
0_0_10972644_10696.cpp:18: error: `sum' undeclared (first use this function)
0_0_10972644_10696.cpp:20: error: expected primary-expression before ']' token
0_0_10972644_10696.cpp:20: error: expected `;' before ']' token
0_0_10972644_10696.cpp:24: error: expected `}' at end of input