Small triangle,large triangle

#include<stdio.h>
#include<math.h>
int main()
{
    int n,n1[100],n2[100],n3[100],i,j,swap;
    float s[100],r[100],rr[100],temp;
    scanf("%d", &n);
    for(i=0; i<n; i++){
        scanf("%d %d %d", &n1[i], &n2[i], &n3[i]);
    }
    for(i=0; i<n; i++){
        s[i]=(n1[i]+n2[i]+n3[i])/2;;
        r[i]=sqrt(s[i]*(s[i]-n1[i])*(s[i]-n2[i])*(s[i]-n3[i]));
        rr[i]=r[i]=sqrt(s[i]*(s[i]-n1[i])*(s[i]-n2[i])*(s[i]-n3[i]));
    }
    while(1){
        swap=0;
        for(i=0; i<n-1; i++){
                if(r[i]>r[i+1]){
                    temp=r[i];
                    r[i]=r[i+1];
                    r[i+1]=temp;
                    swap=1;
                }
        }
        if(swap==0){
            break;
        }
    }
    for(i=0; i<n; i++){
        for(j=0; j<n; j++){
            if(r[i]==rr[j]){
                printf("%d %d %d\n",n1[j],n2[j],n3[j]);
            }
        }
    }
    return 0;
}