Compilare: user.c: In function ‘main’: user.c:46:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &n, &m ); ^ user.c:63:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d%d", &u, &v, &cost ); ^ user.c:36:18: warning: array subscript is above array bounds [-Warray-bounds] c[ptr].next = s[l]; ^ user.c:37:4: warning: array subscript is above array bounds [-Warray-bounds] s[l] = ptr++; ^