Eroare de compilare: user.c: In function ‘main’: user.c:13:9: error: ‘ind’ undeclared (first use in this function) v[ind] = i; ^ user.c:13:9: note: each undeclared identifier is reported only once for each function it appears in user.c:24:10: error: ‘in’ undeclared (first use in this function) fscanf(in, "%d", &t); ^ user.c:50:13: error: ‘out’ undeclared (first use in this function) fprintf(out, "%d %lld\n", nd, sd); ^ user.c:5:9: warning: unused variable ‘fout’ [-Wunused-variable] FILE *fout = fopen("ssnd.out", "w"); ^ user.c:4:9: warning: unused variable ‘fin’ [-Wunused-variable] FILE *fin = fopen("ssnd.in", "r"); ^