cd create_contact
compile main.c
execute then.
cd ../read_contact
compile main.c
execute then.
graph LR
main[ARABEYRE_Raphael_TP_C/ ]
main -- contain --- cc[create _contact/ ]
main -- contain --- rc[read_contact/ ]
main -- will contain --- d
cc --- mcc(main.c)
rc --- mrc(main.c)
mcc -- create --> d((data.txt))
mrc -- read --> d