Frequency problem

[Harryrun]

Hello am a beginner in programming and I came to a problem with a question in which I need to calculate the frequency of appearance of marks.
I have used an array to store the marks but can only find the frequency of the first mark.Complicati on come along as I try for the others.

[arne]

Hello am a beginner in programming and I came to a problem with a question in which I need to calculate the frequency of appearance of marks.
I have used an array to store the marks but can only find the frequency of the first mark.Complicati on come along as I try for the others.

Could elaborate on the specific problems (and may also post some coding)? This will make it a lot easier to help.

[Harryrun]

Could elaborate on the specific problems (and may also post some coding)? This will make it a lot easier to help.

first the input is the number of students, where I used integer n to store the value
and a do-while loop to keep on scanning and store the marks in an character array.

then used a do-while loop to see if the first mark is repeated in the array.
Am stuck with trying to check each mark that are not same as the first.....Pleas e can you help?

while((2*i)<=le n)
{
scanf("%s",&col l); /*coll collects the mark to concatenate in mark*/
strcat(mark,col l);
strcat(mark," ");
i++;
printf("\t\t");
}
as=strlen(mark) ;

do
{
s+=3;
s2+=3;
if((mark[f]==mark[s])&&(mark[f2]==mark[s2]))
freq++;
}
while(s2<=as);

[arne]

first the input is the number of students, where I used integer n to store the value
and a do-while loop to keep on scanning and store the marks in an character array.

then used a do-while loop to see if the first mark is repeated in the array.
Am stuck with trying to check each mark that are not same as the first.....Pleas e can you help?

Are the marks just numbers, say from 1 to 6, or similar?
Or are the possible values for the marks at least known in advance, say letters A to F?
This would simplify things somewhat (and before we start to develop a general solution ... )

[Harryrun]

Are the marks just numbers, say from 1 to 6, or similar?
Or are the possible values for the marks at least known in advance, say letters A to F?
This would simplify things somewhat (and before we start to develop a general solution ... )

The marks are numbers only.
They range from 0 to 99.

[arne]

The marks are numbers only.
They range from 0 to 99.

Then you may define an array 'occurences'

int occurences[100];
 

If you encounter a mark value of 'x' during the scan, you simply increase the xth position:

int x;
scanf( "%d", &x );
occurences[x]++;
 

At the end of the day, the array will hold the occurences of the individual marks.

Correct me if I did not understand the problem :)

[Harryrun]

Thnx I'll try that out.