When I want to create a dynamic array and write data, display position write access conflict is how to return a responsibility?

 
The class Score 
{
Public: 
Void inscore (string n, int m, int E, int P) 
{
Num=n; Math=m; English=E; Programming=P; 
Ascore=(m + E + P)/3; 
} 
Void showscore () 
{
Cout & lt; <"Student id:" & lt; } 

Private: 
String num. 
Int Math; 
Int English; 
Int Programming; 
Int ascore; 
}; 
Int main () 
{
String Num. 
Int math; 
Int English; 
Int programming; 
Int I=0, length=3; 
Score * p=new Score (length), 
While (cin & gt;> Num & gt;> Math & gt;> English & gt;> Programming) 
{
P [I] inscore (Num, math, English, programming). 
i++; 
If (I==length) 
{
Int m; 
Cout & lt; <"Whether or not to continue the input? Yes please enter 1, no please enter 0 "& lt; Cin & gt;> m; 
If (m==1) 
{
Score * tem=new Score (length + 3), 
For (int k=0; K{
Tem (k)=p (k); 
} 
P=tem; 
Length=length + 3; 
The delete [] tem; 
} 
The else break; 
} 
} 
For (int j=0; J & lt; length; J++) 
{
P [j] showscore (); 
} 
The delete [] p; 
return 0; 
} 

CodePudding user response:

 class Score 
{
Public: 
Void inscore (string n, int m, int E, int P) 
{
Num=n; Math=m; English=E; Programming=P; 
Ascore=(m + E + P)/3; 
} 
Void showscore () 
{
Cout & lt; <"Student id:" & lt; } 

Private: 
String num. 
Int Math; 
Int English; 
Int Programming; 
Int ascore; 
}; 
Int main () 
{
String Num. 
Int math; 
Int English; 
Int programming; 
Int I=0, length=3; 
Score * p=new Score (length), 
While (cin & gt;> Num & gt;> Math & gt;> English & gt;> Programming) 
{
P [I] inscore (Num, math, English, programming). 
i++; 
If (I==length) 
{
Int m; 
Cout & lt; <"Whether or not to continue the input? Yes please enter 1, no please enter 0 "& lt; Cin & gt;> m; 
If (m==1) 
{
Score * tem=new Score (length + 3), 
For (int k=0; K{
Tem (k)=p (k); 
} 
Length=length + 3; 
The delete [] p; 
P=tem; 
} 
The else break; 
} 
} 
For (int j=0; J & lt; length; J++) 
{
P [j] showscore (); 
} 
The delete [] p; 
return 0; 
} 

CodePudding user response:

If lack of copy constructor

CodePudding user response:

45 ~ 47 line write wrong, should be recycling p points to the original memory, and then let the p point to the new allocation of three elements of memory
Line 45: delete [] p;
Line 46: p=tem;
Line 47: length=length + 3;

CodePudding user response:

You cross a line!!!!!!!!!!