Method swapx

app/src/main/java/cs/threephase/Edge3.java:529–533

(int x, int y)

    }

    void swapx(int x, int y) {
        tempi = edge[x];
        edge[x] = edgeo[y];
        edgeo[y] = tempi;
    }

    void circlex(int a, int b, int c, int d) {
        tempi = edgeo[d];