View Compilation Error

0_0_3073626_5540.cpp: In function `int main()':
0_0_3073626_5540.cpp:7: error: expected primary-expression before "double"
0_0_3073626_5540.cpp:7: error: expected `;' before "double"
0_0_3073626_5540.cpp:9: error: `r' undeclared (first use this function)
0_0_3073626_5540.cpp:9: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_3073626_5540.cpp:9: error: stray '\' in program