View Compilation Error

0_0_6737925_29646.cpp: In function `void update(int, int, int, int, int)':
0_0_6737925_29646.cpp:68: error: invalid operands of types `int' and `std::ios_base&()(std::ios_base&)' to binary `operator-'
0_0_6737925_29646.cpp:69: error: `add' cannot be used as a function