Compilare: main.c: In function 'mayonaka': main.c:9:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&m); ^~~~~~~~~~~~~~~~~~~~~~ main.c:17:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d %d %d",&x[i],&y[i],&salt[i],&greutate[i]); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~