prepare (1/3): 
finished

make (2/3): 
gcc    -c -o main.o main.c
gcc    -c -o krustal.o krustal.c
gcc    -c -o prim.o prim.c
gcc    -c -o uf.o uf.c
gcc main.o krustal.o prim.o uf.o -o main
finished

clean (3/3): 
finished

all task finished, build successfully