Poryadok

2 elements maximize
#include <stdio.h>
#include <iostream.h>
#include <math.h>
main()

{int s[6],a;
int i,j;
printf("Input massive\n");
for (i=0;i<6;i++)
  scanf("%f",s[i]);

for (i=0;i<5;i+=2) for (j=i+2; j<6; j+=2)

 if (s[i] > s[j]) {a=s[i]; s[i]=s[j]; s[j]=a;}

for (i=0;i<6;i++)

  printf("s=%f",s[i]);

}