Write a program to print the sum of 2 + 22 + 222 + … + nth, up to nth term
#include<stdio.h> int main() { int sum=1, term=1, n=0; printf("Enter term: "); scanf("%d",&n); for(int i = 2; i<=n; i++) { term = term*10 + 1; sum+= term; } printf("Sum = %d",sum*2); return 0; }
Output
Enter term: 4
Sum = 2468
Backend
2 + 22 + 222 + 2222 = 2468