View Compilation Error

0_0_9565942_17993.cpp: In function `int main()':
0_0_9565942_17993.cpp:24: error: expected `,' or `;' before "double"
0_0_9565942_17993.cpp:26: error: `ans' undeclared (first use this function)
0_0_9565942_17993.cpp:26: error: (Each undeclared identifier is reported only once for each function it appears in.)