SortThree.c

#include <stdio.h>

int main() {
	int a, b, c;
	printf("Digite 3 numeros:\n");
	scanf("%d %d %d", &a, &b, &c);
	if (a > c) {
		int tmp = c;
		c = a;
		a = tmp;
	}
	if (a > b) {
		int tmp = b;
		b = a;
		a = tmp;
	}
	if (b > c) {
		int tmp = c;
		c = b;
		b = tmp;
	}
    printf("%d %d %d", a, b, c);
}

//http://pt.stackoverflow.com/q/190931/101