Compilare: user.c: In function ‘main’: user.c:8:24: warning: unused variable ‘aux’ [-Wunused-variable] int n,i,j,ok,m,**a,aux,suma,nr1,nr2,k,y; ^ user.c:8:15: warning: unused variable ‘ok’ [-Wunused-variable] int n,i,j,ok,m,**a,aux,suma,nr1,nr2,k,y; ^ user.c:9:5: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.c:12:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&m); ^ user.c:18:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&a[0][0]); ^ user.c:19:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&a[0][1]); ^ user.c:22:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&nr1); ^ user.c:23:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&nr2); ^