Write a C program to Find the number of times digit 3 occurs in each and every number from 0 to n
Program:-
#include <stdio.h>
int count_3s(int n)
{
int count = 0;
while (n > 0)
{
if (n % 10 == 3)
{
count++;
}
n = n / 10;
}
return count;
}
int count_in_range(int n)
{
int count = 0 ;
for (int i = 2; i <= n; i++)
{
count += count_3s(i);
}
return count;
}
int main()
{
int n;
printf(“\nEnter the end value : “);
scanf(“%d”, &n);
printf(“\nTotal occurrences of 3 from 0 to %d is %d\n”, n,count_in_range(n));
return 0;
}
int count_3s(int n)
{
int count = 0;
while (n > 0)
{
if (n % 10 == 3)
{
count++;
}
n = n / 10;
}
return count;
}
int count_in_range(int n)
{
int count = 0 ;
for (int i = 2; i <= n; i++)
{
count += count_3s(i);
}
return count;
}
int main()
{
int n;
printf(“\nEnter the end value : “);
scanf(“%d”, &n);
printf(“\nTotal occurrences of 3 from 0 to %d is %d\n”, n,count_in_range(n));
return 0;
}
Output:-
....
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