Compilare: user.c: In function ‘main’: user.c:28:13: warning: unused variable ‘len’ [-Wunused-variable] int len = strlen(drow); ^ user.c:9:5: warning: unused variable ‘i’ [-Wunused-variable] int i; ^ user.c:14:7: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(file1, "%s", word); // e ^ user.c:27:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(file1, "%s", drow); ^