Compilare: main.c: In function 'main': main.c:8:28: warning: unused variable 'j' [-Wunused-variable] int n,k,sc,ma,i,x,x2,y,a,j; ^ main.c:12:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&n,&k); ^~~~~~~~~~~~~~~~~~~~~~~~ main.c:16:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&a); ^~~~~~~~~~~~~~~~~~~ main.c:21:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&a); ^~~~~~~~~~~~~~~~~~~