View Compilation Error

0_0_7711447_4502.cpp:20: error: expected init-declarator before "d"
0_0_7711447_4502.cpp:20: error: expected `,' or `;' before "d"
0_0_7711447_4502.cpp: In function `int main()':
0_0_7711447_4502.cpp:37: error: `fun' undeclared (first use this function)
0_0_7711447_4502.cpp:37: error: (Each undeclared identifier is reported only once for each function it appears in.)