Sum from i to j

[pangfengliu]

Task Description

Write a program to compute the sum from i to j, where i < j, and both i and j are positive integers.

Input Format

There are two lines in the input. The first line has the integer i. The second line has the integer j.

Output Format

There are one line in the output. The line has the sum from i to j.

Sample Input

2 5

Sample Output

14

[linsanity711]

include

int main(void) { // your code goes here int a, b; int number; int sum = 0; scanf("%d%d", &a, &b); number = a; while ( number <= b ) { sum += number; number += 1; } printf("%d", sum);

return 0;

}

[Stacyaaa]

include

main() { int i = 1; int sum = 0; int j; scanf("%d", &j); while (i <= j){ sum += i; i++; } printf("%d\n", sum); }

[Stacyaaa]

include

main() { int i, j, sum = 0; scanf("%d", &j); for (i = 1; i <= j; i++) sum += i; printf("%d", sum); return 0; }