Compilare: user.c: In function ‘main’: user.c:53:13: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf(fout,"%d\n" ,con*et); ^ user.c:16:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d" ,&n,&m); ^ user.c:20:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d" ,&nr); ^ user.c:31:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d" ,&q); ^ user.c:34:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%lld" ,&et); ^ user.c:63:42: warning: ‘mij’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout,"%lld\n" ,v1[mij]+(con-mij-1)*et); ^