Code:
#define NUM_BITS_INT 32
#include stdio.h>
int newcount(int);
void main()
{
int count1 = 0, k = 0, j, t, n, bit, i = 1, count = 0;
printf("Enter a number : ");
scanf("%d", &n);
t = n;
while(t != 0)
{
bit = t & 0x80000000;
if (bit == -0x80000000)
{
bit = 1;
}
if (bit == 1)
count++;
t = t << 1;
}
for (k = n + 1;;k++)
{
count1 = newcount(k);
if (count1 == count)
{
printf("The next highest number is : %d ", k);
break;
}
}
}
/* To count the no. of 1's in the no. */
int newcount(int k)
{
int bit, count = 0;
while (k != 0)
{
bit = k & 0x80000000;
if (bit == -0x80000000)
{
bit = 1;
}
if (bit == 1)
count++;
k = k << 1;
}
return(count);
}
Output:
Enter a number : 128
The next highest number is : 256
Enter a number : 127
The next highest number is : 191
Enter a number : 6
The next highest number is : 9
Enter a number : 12
The next highest number is : 17
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