C program for this

#include <stdio.h>
#include <stdlib.h>
int main()
{  //reading a file and entering the elements into a array
scanf("%s",fname);	

    fptr = fopen(fname, "r");
    while(fgets(line[i], LSIZ, fptr)) 
	{
        line[i][strlen(line[i]) - 1] = '\0';
        i++;
    }
    tot = i;
	printf("\n The content of the file %s  are : \n",fname);    
    for(i = 0; i < tot; ++i)
    {
        printf(" %s\n", line[i]);    //needs modification
    }

//Creating a array and storing the values into it
   int i,j,n=3;
   int arr[3][n];
   for(i=0;i<n;i++)
        {
            for(j=0;j<3;j++)
                {
                    int m;
                    scanf("%d",&m);
                    arr[i][j]=m;
                }
        }
        
    for(i=0;i<n;i++)
        {
            for(j=0;j<3;j++)
                {
                    printf("%d \t",arr[i][j]);
                    
                }printf("\n");
        }
        
//Getting the data to compare
int a,b;
printf("Enter  the Symptom code and Condition code");
scanf("%d %d",&a,&b);

//Calculating the occurances
int flag=0;
   for(i=0;i<n;i++)
    {
        if(arr[i][0]==a && arr[i][1]==b)
        {flag+=1;}
        
    }
    printf("%d",flag);
    return 0;
}

//accessigntheindexoftheoccuringpattern