Compilare: user.c: In function ‘creare_matrice’: user.c:7:13: warning: unused variable ‘j’ [-Wunused-variable] {int i, j; ^ user.c:7:10: warning: unused variable ‘i’ [-Wunused-variable] {int i, j; ^ user.c: In function ‘main’: user.c:27:6: warning: implicit declaration of function ‘atoi’ [-Wimplicit-function-declaration] c = atoi(buff); ^ user.c:21:15: warning: unused variable ‘g’ [-Wunused-variable] FILE *f,*g; ^ user.c:21:12: warning: unused variable ‘f’ [-Wunused-variable] FILE *f,*g; ^ user.c:19:51: warning: unused variable ‘r’ [-Wunused-variable] int c , n , i , coordonata[5] , poz , j , m , r , nr_gloante; ^ user.c:23:13: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("geamuri.in","r",stdin); ^ user.c:24:13: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("geamuri.out","w",stdout); ^ user.c:26:11: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(buff,DIM,stdin); ^ user.c:29:11: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(buff,DIM,stdin); ^ user.c:33:15: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] { fgets(buff,DIM,stdin); ^ user.c:42:21: warning: ignoring return value of ‘fread’, declared with attribute warn_unused_result [-Wunused-result] fread(buff,1,DIM,stdin),poz=0; ^ user.c:59:12: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(buff,DIM,stdin); ^ user.c:65:14: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(buff,DIM,stdin); ^