Compilare: user.c: In function ‘main’: user.c:138:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d\n", &N, &M); ^ user.c: In function ‘init’: user.c:30:9: warning: array subscript is above array bounds [-Warray-bounds] type[i + '0'] = i; ^ user.c:30:9: warning: array subscript is above array bounds [-Warray-bounds] user.c:30:9: warning: array subscript is above array bounds [-Warray-bounds] user.c: In function ‘main’: user.c:30:9: warning: array subscript is above array bounds [-Warray-bounds] type[i + '0'] = i; ^ user.c:30:9: warning: array subscript is above array bounds [-Warray-bounds] user.c:30:9: warning: array subscript is above array bounds [-Warray-bounds]