Compilare: main.cpp: In function 'int main()': main.cpp:17:28: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 17 | if(s1.top() == '(' && x ==')' || s1.top() == '[' && x ==']'||s1.top() == '{' && x =='}') | ~~~~~~~~~~~~~~~~^~~~~~~~~~ main.cpp:17:86: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 17 | if(s1.top() == '(' && x ==')' || s1.top() == '[' && x ==']'||s1.top() == '{' && x =='}') | ~~~~~~~~~~~~~~~~^~~~~~~~~~ main.cpp:14:15: warning: 'n' is used uninitialized in this function [-Wuninitialized] 14 | for(i=1; i<=n; i++) | ~^~~ main.cpp:34:11: warning: 'nrmax' may be used uninitialized in this function [-Wmaybe-uninitialized] 34 | fout<<nrmax; | ^~~~~