View Compilation Error

0_0_6343303_4086.cpp:9: error: expected `,' or `;' before "double"
0_0_6343303_4086.cpp: In function `int main()':
0_0_6343303_4086.cpp:24: error: `x' undeclared (first use this function)
0_0_6343303_4086.cpp:24: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6343303_4086.cpp:24: error: `y' undeclared (first use this function)