View Compilation Error

0_0_12980590_1056.cpp:79: error: size of array `stu' is too large
0_0_12980590_1056.cpp: In member function `void Team::getmark()':
0_0_12980590_1056.cpp:115: error: `stu' undeclared (first use this function)
0_0_12980590_1056.cpp:115: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_12980590_1056.cpp: In member function `void Team::setavgpersubject()':
0_0_12980590_1056.cpp:129: error: `stu' undeclared (first use this function)
0_0_12980590_1056.cpp: In member function `void Team::showavgperstudent()':
0_0_12980590_1056.cpp:152: error: `stu' undeclared (first use this function)
0_0_12980590_1056.cpp: In member function `void Team::setnumber()':
0_0_12980590_1056.cpp:165: error: `stu' undeclared (first use this function)