Check if a large number is divisible by 11 or not | C ++ program to find if a number is divisible by 11 or not ; Function to find that number divisible by 11 or not ; Compute sum of even and odd digit sums ; When i is even , position of digit is odd ; Check its difference is divisible by 11 or not ; Driver code
#include <bits/stdc++.h> NEW_LINE using namespace std ; int check ( string str ) { int n = str . length ( ) ; int oddDigSum = 0 , evenDigSum = 0 ; for ( int i = 0 ; i < n ; i ++ ) { if ( i % 2 == 0 ) oddDigSum += ( str [ i ] - '0' ) ; else evenDigSum += ( str [ i ] - '0' ) ; } return ( ( oddDigSum - evenDigSum ) % 11 == 0 ) ; } int main ( ) { string str = "76945" ; check ( str ) ? cout << " Yes " : cout << " No ▁ " ; return 0 ; }