Compilare: main.c: In function 'main': main.c:30:19: warning: format '%lld' expects argument of type 'long long int *', but argument 3 has type 'int *' [-Wformat=] 30 | fscanf(f, "%lld", &k); | ~~~^ ~~ | | | | | int * | long long int * | %d main.c: In function 'calculate_kth_term': main.c:6:9: warning: 'c' may be used uninitialized [-Wmaybe-uninitialized] 6 | int c; | ^ main.c: In function 'main': main.c:35:5: warning: 'c' may be used uninitialized [-Wmaybe-uninitialized] 35 | fprintf(g, "%d", kth_term); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:6:9: note: 'c' was declared here 6 | int c; | ^