Compilare: main.cpp: In function 'int main()': main.cpp:26:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < strlen(sir); i++) ~~^~~~~~~~~~~~~ main.cpp:34:64: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if ( !paranteze.empty() && (paranteze.top() == '(' && sir[i] ==')' || paranteze.top() == '[' && sir[i] ==']') || paranteze.top() == '{' && sir[i] =='}') ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp:34:37: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if ( !paranteze.empty() && (paranteze.top() == '(' && sir[i] ==')' || paranteze.top() == '[' && sir[i] ==']') || paranteze.top() == '{' && sir[i] =='}') ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~