Etruscan Warriors Never Play Chess

  #include   <stdio.h> #include   <string.h> int   main () {      printf ( "Number of Mobile:" );      int   n ;      scanf ( "%d" ,& n );      printf ( " \n\n\n " );      int   i , Phone_price [ 25 ];      char   phone_name [ 25 ][ 25 ], temp [ 25 ], search [ 25 ];      for ( i = 0 ; i < n ; i ++)     {          printf ( "Name:" );          scanf ( "%s" , phone_name [ i ]);          printf ( "Price :" );          scanf ( "%d" ,& Phone_price [ i ]);     } int   j , count  ;     for ( i = 0 ; i < n - 1 ; i ++)    {     ...

  #include <stdio.h> #include <math.h> int   main (){ int   n , x , a ; scanf ( "%d" ,& n ); while ( n --){ scanf ( "%d" ,& x ); a  = ( sqrt ( 1 + 4 * 2 * x ) -  1 )/ 2 ; printf ( "%d \n " , a ); } return   0 ; }