Compilare: user.c: In function ‘creare_matrice’: user.c:7:13: warning: unused variable ‘j’ [-Wunused-variable] {int i, j; ^ user.c: In function ‘main’: user.c:28:6: warning: implicit declaration of function ‘atoi’ [-Wimplicit-function-declaration] c = atoi(buff); ^ user.c:22:15: warning: unused variable ‘g’ [-Wunused-variable] FILE *f,*g; ^ user.c:22:12: warning: unused variable ‘f’ [-Wunused-variable] FILE *f,*g; ^ user.c:24:13: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("geamuri.in","r",stdin); ^ user.c:25:13: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("geamuri.out","w",stdout); ^ user.c:27:11: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(buff,DIM,stdin); ^ user.c:30:11: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(buff,DIM,stdin); ^ user.c:34:15: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] { fgets(buff,DIM,stdin); ^ user.c:43:21: warning: ignoring return value of ‘fread’, declared with attribute warn_unused_result [-Wunused-result] fread(buff,1,DIM,stdin),poz=0; ^ user.c:63:12: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(buff,DIM,stdin); ^ user.c:69:14: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(buff,DIM,stdin); ^