Compilare: main.cpp: In function 'void setup()': main.cpp:30:11: warning: unused variable 'j' [-Wunused-variable] int i,j; ^ main.cpp: In function 'int cautarebin(int, int, int)': main.cpp:25:12: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] return sol; ^~~ main.cpp: In function 'void intreb()': main.cpp:64:23: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] s+=(itr-1)*(n1-k); ~~~^~~