Compilare: main.cpp: In function 'int expresie()': main.cpp:14:18: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 14 | while (i < n && s[i] == '+' || s[i] == '-') | ~~~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int termen()': main.cpp:34:18: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 34 | while (i < n && s[i] == '*' || s[i] == '/') | ~~~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int factor()': main.cpp:57:11: warning: 'r' may be used uninitialized [-Wmaybe-uninitialized] 57 | r += expresie(); | ~~^~~~~~~~~~~~~ main.cpp:53:9: note: 'r' was declared here 53 | int r; | ^