#include <stdio.h>

void swap(int *start, int *small)
{
	int i = *start;
	*start = *small;
	*small = i;
}

int main()
{
	const int ArraySize = 7;
	int StartIndex = 0;
	int CurrentIndex = 0;
	int i = 0;
	int Numeros[7] = { 30, 50, 20, 10, 40, 80, 15 };
	 
	for (StartIndex = 0; StartIndex < ArraySize; StartIndex++)
	{
	     int SmallestIndex = StartIndex;
	 
	    for (CurrentIndex = StartIndex + 1; CurrentIndex < ArraySize; CurrentIndex++)
	    {
		if (Numeros[CurrentIndex] < Numeros[SmallestIndex])
		    SmallestIndex = CurrentIndex;
	    }
	 
	    swap(&Numeros[StartIndex], &Numeros[SmallestIndex]);
	}
	
	for (i = 0; i < 7; i++)
	{
		printf("Nº: %i\n", Numeros[i]);
	}
	return 0;
}