Compilare: user.c: In function ‘main’: user.c:29:6: warning: implicit declaration of function ‘atoi’ [-Wimplicit-function-declaration] c = atoi(buff); ^ user.c:23:15: warning: unused variable ‘g’ [-Wunused-variable] FILE *f,*g; ^ user.c:23:12: warning: unused variable ‘f’ [-Wunused-variable] FILE *f,*g; ^ user.c:21:51: warning: unused variable ‘r’ [-Wunused-variable] int c , n , i , coordonata[5] , poz , j , m , r , nr_gloante; ^ user.c:21:9: warning: variable ‘c’ set but not used [-Wunused-but-set-variable] int c , n , i , coordonata[5] , poz , j , m , r , nr_gloante; ^ user.c:25:13: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("geamuri.in","r",stdin); ^ user.c:26:13: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("geamuri.out","w",stdout); ^ user.c:28:11: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(buff,DIM,stdin); ^ user.c:31:11: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(buff,DIM,stdin); ^ user.c:35:15: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] { fgets(buff,DIM,stdin); ^ user.c:44:21: warning: ignoring return value of ‘fread’, declared with attribute warn_unused_result [-Wunused-result] fread(buff,1,DIM,stdin),poz=0; ^ user.c:54:12: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(buff,DIM,stdin); ^ user.c:60:14: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(buff,DIM,stdin); ^