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This is a memory allcation C question:
I need to create a 2D array that holds different versions of the same struct – each array[][] will hold different x, y values. The layout is found below.
How would I implement this? How would I update data in the program in array[1][0] after it is implemented?
Thanks
/01 3) iO 20 Struct Data nt x int
Expert Answer
Answer:
#include<iostream>
#include<stdio.h>
using namespace std;
struct data
{
int x,y;
};
int main(){
int reacod;
struct data*ptr;
printf(“Enter the recodsn”);
scanf(“%s %d”,&reacod);
ptr = malloc ( sizeof(struct data));
for(int i=0;i<reacod;i++)
{
for(int j=0;i<reacod;j++)
{
printf(“Enter the values of x and y”);
scanf(“%s %d”, &(ptr+i)->x,&(ptr+j)->y);
if(ptr[i]==1&&ptr[j]==0)
{
printf(“Enter the values to be updated”);
scanf(“%s %d”, &(ptr+i)->x,&(ptr+j)->y);
}
}
}
}
