View Compilation Error

0_0_15557669_30312.cpp: In function 'int main()':
0_0_15557669_30312.cpp:29:17: error: 'd' was not declared in this scope
                 d
                 ^
0_0_15557669_30312.cpp:29:17: error: expected '}' at end of input
0_0_15557669_30312.cpp:29:17: error: expected '}' at end of input
0_0_15557669_30312.cpp:29:17: error: expected '}' at end of input