Compilare: main.c: In function 'main': main.c:37:11: warning: unused variable 'j' [-Wunused-variable] int n,i,j,st,s; ^ main.c:41:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&n); ^~~~~~~~~~~~~~~~~~~ main.c:44:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&v[i],&m[i]); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~