Compilare: user.c: In function ‘main’: user.c:92:5: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long int’ [-Wformat=] printf("\n--- %d -- %d -- \n",i,(A - power[i])); ^ user.c:105:2: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long int’ [-Wformat=] printf("\n%d",sol); ^ user.c:107:5: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long int’ [-Wformat=] fprintf(f,"%d",sol); ^ user.c:83:5: warning: unused variable ‘k’ [-Wunused-variable] int k=0; ^ user.c:82:5: warning: unused variable ‘ok’ [-Wunused-variable] int ok =1; ^ user.c:20:14: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(s,100,f); ^ user.c:44:14: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(s,32767,f); ^ user.c:8:15: warning: ‘A’ may be used uninitialized in this function [-Wmaybe-uninitialized] short int A,B,power[1000000],v[32767],x; ^ user.c:90:1: warning: ‘N’ may be used uninitialized in this function [-Wmaybe-uninitialized] for (i=1; i<=N;i++) ^