View Compilation Error

0_0_1814522_29624.cpp: In function `int main()':
0_0_1814522_29624.cpp:7: error: expected unqualified-id before "float"
0_0_1814522_29624.cpp:7: error: expected `,' or `;' before "float"
0_0_1814522_29624.cpp:13: error: `x' undeclared (first use this function)
0_0_1814522_29624.cpp:13: error: (Each undeclared identifier is reported only once for each function it appears in.)