/in/foo.cc: In function 'void BubbleSort(Student*, int)':
/in/foo.cc:24:24: error: conversion from 'int' to non-scalar type 'Student' requested
     Student t = Stu[j].total;
                 ~~~~~~~^~~~~
/in/foo.cc:26:24: error: cannot convert 'Student' to 'int' in assignment
     Stu[j + 1].total = t;
                        ^