Eroare de compilare: user.c: In function ‘main’: user.c:17:3: warning: format ‘%c’ expects argument of type ‘char *’, but argument 3 has type ‘int’ [-Wformat=] fscanf(in, "%c", ch); ^ user.c:24:10: error: ‘i’ undeclared (first use in this function) if((ch[i] == ' ') ^ user.c:24:10: note: each undeclared identifier is reported only once for each function it appears in user.c:36:2: warning: implicit declaration of function ‘close’ [-Wimplicit-function-declaration] close(in); ^ user.c:17:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%c", ch); ^