WAP in c to generate the following pattern

1
01
101
0101
10101

#include<stdio.h>
#include<stdlib.h>

main()
{
  int i,j,x;

  for(i=1;i<=5;i++)
  {
     if(i%2==0)
     x=0;
     else
     x=1;

     for(j=1;j<=i;j++)
     {
        printf("%d",x);
        x=!x;
     }
     printf("\n");
     }
      system("pause");
    }
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