Compilare: user.cpp: In function ‘int main()’: user.cpp:15:26: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(c[j]=='}' && c[k]=='{' || c[j]==')' && c[k]=='(' || c[j]==']' && c[k]=='['){ ^ user.cpp:15:78: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(c[j]=='}' && c[k]=='{' || c[j]==')' && c[k]=='(' || c[j]==']' && c[k]=='['){ ^ user.cpp:28:34: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(c[j]=='}' && c[k]=='{' || c[j]==')' && c[k]=='(' || c[j]==']' && c[k]=='[') ^ user.cpp:28:86: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(c[j]=='}' && c[k]=='{' || c[j]==')' && c[k]=='(' || c[j]==']' && c[k]=='[') ^ user.cpp:14:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(v[j]==0) ^