2 dimensional array

[nithu m]

IN THIS PROGRAM HOW TAT pivot IS COMPARED WITH FREQUENCY [0] [k] ?because frequency array doesnot have any values then how is it possible to compare ?
can anyone pls explain this program to me ?

#include<stdio. h>
#include<conio. h>
main(){
int MAX =20;

int arr[20] = {1,2,30,4,1,2,6 ,8,5,0,9,8,3,5, 6,7,2,6,1,1};
int frequency[2][20];
int counter = 0;
int flag = 0;
int i =0,j=0,k=0;
int pivot;

for (i=0;i<MAX;i++)
{
pivot = arr[i];
for (k=0;k<j;k++)
{
if (pivot == frequency[0][k])
{
flag = 1;
break;
}
}

if (flag == 0)
{
for(k=0;k<MAX;k ++)
{
if(pivot ==arr[k])
counter++;
}

frequency[0][j] = pivot;
frequency[1][j] = counter;
counter = 0;
j++;
}
flag= 0;
}

for(i=0;i<j;i++ )
{
printf("Element : %d, Frequency : %d \n",frequency[0][i],frequency[1][i]);
}



getch();
}

[johny10151981]

It does not check without setting, take a look at the beginning j value is zero and so the loop with k never get started.

so, flag remain zero.

so it will enter second loop that start from k to MAX, after finishing loop it initialize frequency for the first time, and then j get increased reached to 1 and so on

[nithu m]

thank you mr.johny i understood tis program now

[johny10151981]

Please learn how to debug. It will give you faster answer than forum

[nithu m]

im using dev c++ software so it is bit difficult to debug a line or loop seperatly

[whodgson]

"im using dev c++ software so it is bit difficult to debug a line or loop seperatly"
rubbish!