help

[proud pike]

idk whats wrong with my code please help

namespace zhang {
int bank_number_part(int secret_modifier) {
int zhang_part{ 8'541 };
return (zhang_part * secret_modifier) % 10000;
}
namespace red {
int code_fragment() { return 512; }
}
namespace blue {
int code_fragment() { return 677; }
}
}

namespace khan {
int bank_number_part(int secret_modifier) {
int khan_part{ 4'142 };
return (khan_part * secret_modifier) % 10000;
}
namespace red {
int code_fragment() { return 148; }
}
namespace blue {
int code_fragment() { return 875; }
}
}

namespace garcia {
int bank_number_part(int secret_modifier) {
int garcia_part{ 4'023 };
return (garcia_part * secret_modifier) % 10000;
}
namespace red {
int code_fragment() { return 118; }
}
namespace blue {
int code_fragment() { return 923; }
}
}

namespace estate_executor {
int assemble_account_number(int secret_modifier) {
return zhang::bank_number_part(secret_modifier) + khan::bank_number_part(secret_modifier) + garcia::bank_number_part(secret_modifier);
}
}

[tardy knot]

Asking questions well increases your chance of getting help. Learn how to write good support requests in this article: http://bit.ly/howto-ask

[tight plover]

Please use codeblocks around your code.
Please include test output as text.