Compilare: user.cpp: In function ‘bool Ok(int)’: user.cpp:63:23: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] v1=(((1LL*((v1-(1LL*(a[i-L]-'0')*aux1)&(P1-1))+P1)&(P1-1))*X+a[i]-'0')&(P1-1)); ^ user.cpp:64:23: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] v2=(((1LL*((v2-(1LL*(a[i-L]-'0')*aux2)&(P2-1))+P2)&(P2-1))*Y+a[i]-'0')&(P2-1)); ^ user.cpp:78:24: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] v1=((((1LL*((v1-(1LL*(a[i-L]-'0')*aux1)&(P1-1))+P1))&(P1-1))*X+a[i]-'0')&(P1-1)); ^ user.cpp:79:24: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] v2=((((1LL*((v2-(1LL*(a[i-L]-'0')*aux2)&(P2-1))+P2))&(P2-1))*Y+a[i]-'0')&(P2-1)); ^ user.cpp: In function ‘int main()’: user.cpp:104:24: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%d\n", sol); ^