Compilare: main.c: In function 'main': main.c:11:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&n); ^~~~~~~~~~~~~~~~~~~ main.c:12:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&k); ^~~~~~~~~~~~~~~~~~~ main.c:14:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&v[1]); ^~~~~~~~~~~~~~~~~~~~~~ main.c:16:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&a); ^~~~~~~~~~~~~~~~~~~