Compilare: main.c: In function 'main': main.c:35:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d", &n, &m); ^~~~~~~~~~~~~~~~~~~~~~~~ main.c:43:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d%d", &c[i].x, &c[i].y, &c[i].salt,&c[i].greutate); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~