View Compilation Error

0_0_16056832_16611.c: In function 'main':
0_0_16056832_16611.c:10:26: error: 'f' undeclared (first use in this function)
        scanf("%f %d %d",&f,&f,&f);
                          ^
0_0_16056832_16611.c:10:26: note: each undeclared identifier is reported only once for each function it appears in