Compilare: user.c: In function ‘main’: user.c:11:3: warning: format ‘%u’ expects argument of type ‘unsigned int *’, but argument 3 has type ‘short int *’ [-Wformat=] fscanf(fi,"%u %u", &m, &n); ^ user.c:11:3: warning: format ‘%u’ expects argument of type ‘unsigned int *’, but argument 4 has type ‘short int *’ [-Wformat=] user.c:14:7: warning: format ‘%u’ expects argument of type ‘unsigned int *’, but argument 3 has type ‘short int *’ [-Wformat=] fscanf(fi,"%u",&a[i][j]); ^ user.c:11:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%u %u", &m, &n); ^ user.c:14:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%u",&a[i][j]); ^