Compilare: main.cpp: In function 'int expresie()': main.cpp:22:18: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 22 | while (i < n && s[i] == '+' || s[i] == '-') | ~~~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int termen()': main.cpp:41:18: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 41 | while (i < n && s[i] == '*' || s[i] == '/') | ~~~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int factor()': main.cpp:63:11: warning: 'r' may be used uninitialized [-Wmaybe-uninitialized] 63 | r += expresie(); | ~~^~~~~~~~~~~~~ main.cpp:59:9: note: 'r' was declared here 59 | int r; | ^