Compilare: main.cpp: In function 'char s_3bc(int*, int)': main.cpp:10:9: warning: variable 'nrb' set but not used [-Wunused-but-set-variable] 10 | int nrb=1; | ^~~ main.cpp: In function 'char trysolve(int*, int, char)': main.cpp:60:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else] 60 | if(v[0]==1) | ^ main.cpp:68:1: warning: control reaches end of non-void function [-Wreturn-type] 68 | } | ^