what is the error in this code can anyone help me!

Question

#include<stdio.h>

int main()
{
int size,rot,testcase,array[15],demo[15],i,j,k,s,r;
scanf("%d %d %d",&testcase,&size,&rot);
while(testcase>0)
{

s=size;
for(i=0;i<size;i++)
{
scanf("%d",&array[i]);
}
for(r=0;rot>0;r++)
{
for(j=0;j<size;j++)
{
demo[j]=array[j];
}
for(k=0;k<size;k++)
{
array[k]=demo[s-1];
s--;
}
rot--;
}

testcase--;
}
for(i=0;i<size;i++)
{
printf("%d \n",array[i]);
}
}

Answer 1

Here T is 1, which means one test case.
denoting the number of elements in the array and , denoting the number of steps of rotations.
The initial array is: 1,2,3,4,5
In first rotation, 5 will come in the first position and all other elements will move to one position ahead from their current position. Now, the resultant array will be 5,1,2,3,4.In second rotation, 4 will come in the first position and all other elements will move to one position ahead from their current position. Now, the resultant array will be 4,5,1,2,3.