Eroare de compilare: user.c: In function ‘main’: user.c:6:7: error: too few arguments to function ‘fopen’ in = fopen("adunare.in"); ^~~~~ In file included from user.c:1:0: /usr/include/stdio.h:272:14: note: declared here extern FILE *fopen (const char *__restrict __filename, ^~~~~ user.c:7:8: error: too few arguments to function ‘fopen’ out = fopen("adunare.out"); ^~~~~ In file included from user.c:1:0: /usr/include/stdio.h:272:14: note: declared here extern FILE *fopen (const char *__restrict __filename, ^~~~~ user.c:9:2: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d", &a, &b); ^~~~~~~~~~~~~~~~~~~~~~~~~~