Hello.

When 'mpicc'ing' my program, I get these warnings:

/media/TOSHIBA/Hooshdaran_p2.c: In function ‘main’:

/media/TOSHIBA/Hooshdaran_p2.c:38:5: warning: assignment makes pointer from integer without a cast [enabled by default]

/media/TOSHIBA/Hooshdaran_p2.c:39:14: warning: initialization makes pointer from integer without a cast [enabled by default]

/media/TOSHIBA/Hooshdaran_p2.c:84:11: warning: assignment makes pointer from integer without a cast [enabled by default]

Why are they produced? I attach the program file for you