28 lines
418 B
C
28 lines
418 B
C
#include <stdio.h>
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int main(void) {
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int a, b, i, ans;
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printf("Input integer: ");
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(void)scanf("%d", &a);
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printf("Input integer: ");
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(void)scanf("%d", &b);
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if (a < b) {
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a = a^b;
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b = a^b;
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a = a^b;
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}
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i = b;
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ans = 0;
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do {
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ans += i++;
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} while (i <= a);
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printf("Sum of all integer between %d and %d is %d.\n", b, a, ans);
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return 0;
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}
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