View Compilation Error

225749_0_4827.cpp: In function `int main()':
225749_0_4827.cpp:14: error: `d' undeclared (first use this function)
225749_0_4827.cpp:14: error: (Each undeclared identifier is reported only once for each function it appears in.)
225749_0_4827.cpp:14: error: expected `;' before '{' token