Compilare: user.cpp: In function ‘int main()’: user.cpp:42:47: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(x[i]=='!'||x[i]=='.'||x[i]=='?'&&lx>1) ^ user.cpp:51:25: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(lx==1&&x[i]=='!'||x[i]=='.'||x[i]=='?') ^ user.cpp:9:20: warning: unused variable ‘r’ [-Wunused-variable] int lx,cuv=0,i,r; ^