C Programming Code Examples C > Code Snippets Code Examples Sum the integers from 1 to a user-specified number Sum the integers from 1 to a user-specified number #include <stdio.h> void main() { long sum = 0L; int count = 10; /* The number of integers to be summed */ int j = 0; /* The loop counter */ /* Sum integers from 1 to count */ for(j = 1 ; j <= count ; j++) sum += j; printf("\nTotal of the first %d numbers is %ld\n", count, sum); }