(1+2+...+100)+(1^2+2^2+...+50^2)+(1/1+1/2+...+1/10)

#include <stdio.h>
#include <math.h>
int main()
{
  int t, i;
  double sum1 = 0,sum2=0,sum3=0,sum,denom;
  for (t = 1; t <= 100; t++)
  {
    sum1 = sum1 + t;
  }
  for (i=1; i <= 50; i++)
  {
    t = pow(i, 2);
    sum2 = sum2 + t;
  }
  for (t = 1; t <= 10; t++)
  {
    denom = 1.0/t;
    sum3 = sum3 + denom;
  }
  sum = sum1 + sum2+sum3;
  printf("%lf\n", sum);
  return 0;
}