Compilare: user.c: In function ‘main’: user.c:18:51: warning: unused variable ‘r’ [-Wunused-variable] int m, n, i, j, x1, x2, y1, y2,nr_gloante, k, r ; ^ user.c:18:48: warning: unused variable ‘k’ [-Wunused-variable] int m, n, i, j, x1, x2, y1, y2,nr_gloante, k, r ; ^ user.c:18:18: warning: unused variable ‘j’ [-Wunused-variable] int m, n, i, j, x1, x2, y1, y2,nr_gloante, k, r ; ^ user.c:25:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&c); ^ user.c:26:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.c:30:12: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d %d %d",&x1,&y1,&x2,&y2); ^ user.c:35:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&m); ^ user.c:39:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&nr_gloante); ^