Compilare: main.c: In function 'main': main.c:22:3: warning: implicit declaration of function 'exit' [-Wimplicit-function-declaration] 22 | exit(0); | ^~~~ main.c:22:3: warning: incompatible implicit declaration of built-in function 'exit' main.c:3:1: note: include '<stdlib.h>' or provide a declaration of 'exit' 2 | #include <stdio.h> +++ |+#include <stdlib.h> 3 | main.c:50:2: warning: 'stop' may be used uninitialized in this function [-Wmaybe-uninitialized] 50 | fprintf(ssm_out, "%d %d %d", best_sum, start, stop); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:50:2: warning: 'start' may be used uninitialized in this function [-Wmaybe-uninitialized]