Compilare: main.c: In function 'main': main.c:75:23: warning: unused variable 'j' [-Wunused-variable] int n,m,q,i,a,b,c,d,j,some,full,step; ^ main.c:78:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&n,&m); ^~~~~~~~~~~~~~~~~~~~~~~~ main.c:80:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&h[i]); ^~~~~~~~~~~~~~~~~~~~~~ main.c:87:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&q); ^~~~~~~~~~~~~~~~~~~