Comparing two dimentional array with one dimensional array

[GabeSonny21]

#include <iostream>
using namespace std;

int main () {
int student1mark = 0, student2mark = 0, student3mark = 0, student4mark = 0, student5mark = 0, student6mark = 0, student7mark = 0, student8mark = 0, student9mark = 0, student10mark = 0;
char studentanswer[10][10] = {{'A','A','A','A','A','A','A','A','A','A'}, {'B','B','B','B','B','B','B','B','B','B'},
{'B','C','A','D','B','B','B','C','B','A'}, {'A','C','A','D','B','B','B','C','B','A'}, {'A','B','A','D','B','A','B','C','B','A'},
{'C','C','C','C','C','C','C','C','C','C'}, {'D','D','D','D','D','D','D','D','D','D'}, {'A','D','D','D','D','A','D','D','D','D'},
{'D','A','D','D','D','D','D','D','D','D'}, {'D','D','D','D','A','A','A','A','A','A'} };
char correctanswer[10] = {'A','A','A','A','A','A','A','A','A','A'};


for( int x = 0; x!= 10; ++x ) {
for( int y = 0; y!= 10; ++y ){

cout << studentanswer[x][y] << ", ";
}
endl(cout);

}endl(cout);

for( int y = 0; y < 10; ++y ){

cout << correctanswer[y] << ", ";
} endl(cout);


for( int y = 0; y < 10; ++y ){


if (studentanswer[0][y] == correctanswer[y]){
student1mark += 1; }

}

for( int y = 0; y < 10; ++y ){


if (studentanswer[1][y] == correctanswer[y]){
student2mark += 1; }

}

for( int y = 0; y < 10; ++y ){


if (studentanswer[2][y] == correctanswer[y]){
student3mark += 1; }

}

for( int y = 0; y < 10; ++y ){


if (studentanswer[3][y] == correctanswer[y]){
student3mark += 1; }

}

for( int y = 0; y < 10; ++y ){


if (studentanswer[4][y] == correctanswer[y]){
student4mark += 1; }

}

for( int y = 0; y < 10; ++y ){


if (studentanswer[5][y] == correctanswer[y]){
student5mark += 1; }

}

for( int y = 0; y < 10; ++y ){


if (studentanswer[6][y] == correctanswer[y]){
student6mark += 1; }

}

for( int y = 0; y < 10; ++y ){


if (studentanswer[7][y] == correctanswer[y]){
student7mark += 1; }

}

for( int y = 0; y < 10; ++y ){


if (studentanswer[8][y] == correctanswer[y]){
student8mark += 1; }

}

for( int y = 0; y < 10; ++y ){

if (studentanswer[9][y] == correctanswer[y]){
student9mark += 1; }

}


cout << "\nStudent 1 correct answers is:" << student1mark << endl;
cout << "Student 2 correct answers is:" << student2mark << endl;
cout << "Student 3 correct answers is:" << student3mark << endl;
cout << "Student 4 correct answers is:" << student4mark << endl;
cout << "Student 5 correct answers is:" << student5mark << endl;
cout << "Student 6 correct answers is:" << student6mark << endl;
cout << "Student 7 correct answers is:" << student7mark << endl;
cout << "Student 8 correct answers is:" << student8mark << endl;
cout << "Student 9 correct answers is:" << student9mark << endl;
cout << "Student 10 correct answers is:" << student10mark << endl;
}


Hello b0ss im new here.
I am trying to write a program that can grade multiple choice question but it doesn't seem to show the correct result.
Pls help me b0ss

[Ganado]

Look closer.

if (studentanswer[2][y] == correctanswer[y]){
student3mark += 1; }

}

for( int y = 0; y < 10; ++y ){


if (studentanswer[3][y] == correctanswer[y]){
student3mark += 1; }

}

Why not use an array of student marks instead of making 10 separate variables/loops? It's kinda ridiculous, and, as you can see, error prone. What would you have done if you had 100 students?

[GabeSonny21]

Hello b0ss how do you set the variable mark back to zero after the first student answer have been evaluated ?

#include <iostream>
using namespace std;

int main () {
int mark, d;
char studentanswer[10][10] = {{'A','A','A','A','A','A','A','A','A','A'}, {'B','B','B','B','B','B','B','B','B','B'},
{'B','C','A','D','B','B','B','C','B','A'}, {'A','C','A','D','B','B','B','C','B','A'}, {'A','B','A','D','B','A','B','C','B','A'},
{'C','C','C','C','C','C','C','C','C','C'}, {'D','D','D','D','D','D','D','D','D','D'}, {'A','D','D','D','D','A','D','D','D','D'},
{'D','A','D','D','D','D','D','D','D','D'}, {'D','D','D','D','A','A','A','A','A','A'} };

char correctanswer[10] = {'A','A','A','A','A','A','A','A','A','A'};


for( int x = 0; x!= 10; ++x ) {
for( int y = 0; y!= 10; ++y ){

cout << studentanswer[x][y] << ", ";
}
endl(cout);

}endl(cout);


for( int x = 0; x < 10; ++x ){
for( int y = 0; y < 10; ++y ){

if (studentanswer[x][y] == correctanswer[y]){
mark += 1;
}
}
cout << "Student " << d << " correct answers is: "<< mark << endl;
d++;

}

[GabeSonny21]

Thank you b0ss for your help