View Compilation Error

0_0_30714433_29215.cpp: In function 'int main()':
0_0_30714433_29215.cpp:6:21: error: expected primary-expression at end of input
     while(scanf("%f",
                     ^
0_0_30714433_29215.cpp:6:21: error: expected ')' at end of input
0_0_30714433_29215.cpp:6:21: error: expected statement at end of input
0_0_30714433_29215.cpp:6:21: error: expected '}' at end of input