Compilare: user.cpp: In function ‘int main()’: user.cpp:22:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<min(n,3);i++) ^ user.cpp:39:91: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if ((k>=1 &&c[k]==c[k-1]) || (k>=2 && c[k] == c[k-1] && c[k] == c[k-2]) || (k>=3) && (c[k] == c[k-1] && c[k] == c[k-2] && c[k] == c[k-3])) ^ user.cpp:17:56: warning: variable ‘nr’ set but not used [-Wunused-but-set-variable] unsigned long long int n,i,v[100000],c[100000],k,z,nr,ok; ^