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50 changes: 50 additions & 0 deletions palindrome-calc
Original file line number Diff line number Diff line change
@@ -0,0 +1,50 @@
#include <stdio.h>
#include <strings.h>
#include <math.h>

void pal_find(int num, int dig);
char programmer[20] = "Prakhar Shukla";

int main()
{
system("cls");
int greatest_dig;
int dig;

printf("***************Welcome to Palindromic Calculator Program***************\n\n");

printf("Enter the number of digits whose calculation is to be made...\n");
scanf("%d", &dig);

greatest_dig = pow((pow(10, dig) - 1), 2);

pal_find(greatest_dig, dig);

return 0;
}

void pal_find(int num, int dig)
{
int great_num;
char seedha[100], ulta[100];
for (int i = num; i > 0; i--)
{
sprintf(seedha, "%d", i);
strcpy(ulta, seedha);
strrev(ulta);

if (strcmp(seedha, ulta) == 0)
{
great_num = i;
for (int j = (pow(10, dig) - 1); j > 0; j--)
{
if (great_num % j == 0 && great_num / j < pow(10, dig))
{
printf("The greatest number made by product of two %d digit numbers is %d and the two numbers are %d, %d\n", dig, great_num, j, great_num / j);
printf("\nThanks for using this program created by %s", programmer);
exit(0);
}
}
}
}
}