Write a program to validate a phone number consisting of only 1s and 0s.

The program prints a pattern of alternating 1s and 0s in a specific sequence.

• Use a loop to iterate through the given sequence of numbers

• Inside the loop, check the length of each number and print the c...read more

In C lang,

#include<stdio.h>

int main()

{

int i,j;

int n=5;

for(i=0;i<n;i++)

{

for(j=0;j<i;j++)

{

if((i+j)%2==0){printf("0");

}

else{

printf("1");

}

}

printf("\n");

}

return 0;

}